The March 13th 1971 and March 22nd 1971 communications were effectively claiming murders from October 1966 and September 1970. However, the next murder Zodiac would ultimately claim, occurred just four days after the San Francisco, California release of Tom Hanson's "Zodiac Killer" (April 7th 1971). This movie was advertised extensively in the San Francisco Chronicle the week before, and several days after the murder of Kathy Bilek on April 11th 1971 "in the woods" of Villa Montalvo in Saratoga. The movie poster and advertisements carried the wording from the Confession letter, mailed on November 29th 1966 after the Cheri Jo Bates murder, a month earlier. It read "Keep your sisters, daughters and wives off the streets", Or Zodiac Says "I lay awake nights; thinking of my next victim" (see foot of article).

Two days after this movie was advertised in the San Francisco Chronicle on April 13th 1971, a "Zodiac" letter was received at the San Jose Sheriff's Office dated "Thursday", which was April 15th 1971. It was addressed to the "Homicide Inspector". On the same day the movie was advertised in the San Francisco Chronicle (April 13th 1971), newspaper reports from around the country asked the question of whether Zodiac was responsible for the murder of Kathy Bilek (including The Riverside Press), stating "the teenager might be another victim of the Zodiac Killer".

​Therefore, we.have the San Francisco Chronicle and The Riverside Press newspapers using the phrases "next victim" and "another victim" on the same day. Followed two days later by a suggested Zodiac letter on April 15th 1971, which the local San Jose newspaper reported as a communication that spoke of "Zodiac" and "another victim". The newspaper also mentioned that the letter told of a girl who works in a hospital, who could be his "next victim". It appears that the author was incorporating phrases from the newspapers into his correspondence, which could demonstrate attentiveness to any story related to the Zodiac Killer. The letter was addressed to the "Homicide Inspector", whereas the threat of a "next victim" in one of the Confession letters from 1966, was addressed to "Homicide Detail". This letter was mailed one month after the Zodiac Killer admitted to "riverside activity" on March 13th 1971, which included a promised "next victim" in Riverside in 1966.  

The April 15th 1971 letter wasn't the first time a claimed Zodiac Killer wrote to San Jose law enforcement. A letter was mailed to the San Jose Police Department on November 21st 1969 threatening a widow in San Jose, which resulted in police providing the woman with 24 hours of protection. This current author would not have been aware of that threat, because the November 21st 1969 communication has never been released into the public domain. Unless of course, the current author was the Zodiac Killer - and he wrote both letters.

​Another curious feature of the  April 15th 1971 letter, is the suggestion that the "next victim" could be a girl who works in a hospital. On August 1st 1973 the Zodiac Killer seemed to confirm this wish by writing a letter to the Albany Times Union newspaper and threatening that the location of his "next victim" would be the Albany Medical Center in New York. The letter read "You were wrong I am not dead or in the hospital. I am alive and I'm going to start killing again. Below is the name and location of my next victim. But you had better hurry because I'm going to kill her August 10th at 5:00 PM when the shift change". The thought being that the Zodiac Killer was promising to murder a female nurse.  

It really is no surprise that in May 1971 and on July 13th 1971, the Zodiac Killer would mail a further two communications laying claim to the murder of Kathy Bilek (18), alongside his previously claimed victims of Kathie Reyne Snoozy (15) and Debra Gaye Furlong (14), murdered in San Jose on August 3rd 1969. And that he would link the May 1971 and August 1st 1973 cryptograms together through ciphertext and plaintext similarities.

​On Sunday, April 11th 1971, Kathy Bilek (18) visited Villa Montalvo in Saratoga, having planned to read a paperback book (The Gabriel Hounds) and engage in a spot of bird watching​ in the seclusion of a remote, wooded portion of the park, near a small stream. Her body was found the next day by her father, Charles, while Santa Clara County Sheriff's deputies searched nearby. She had been stabbed 17 times in the back and 32 times in her chest and stomach. 

​The Gabriel Hounds is a romantic mystery by Mary Stewart, set in Lebanon. The "Gabriel Hounds" are spectral hounds in folklore, believed to foretell death or misfortune to those who hear their howls, and are associated with the crumbling palace of Dar Ibrahim in the Adonis Valley of Lebanon.  

 A FOUR YEAR JOURNEY TO TOMBSTONE 
ANOTHER "ZODIAC" LETTER ON APRIL 15TH 1971

On March 13th 1971 the Zodiac Killer insinuated his involvement down south when declaring in his Los Angeles letter "I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there". The question police asked themselves, was whether the Zodiac Killer was blowing hot air, or were there really other victims in Riverside - possibly close to the murder site of Cheri Jo Bates. The police reviewed a case 3.9 miles (by crow) from Terracina Drive and the Riverside City College library on May 13th 1961, mysteriously pointed in that direction by a dead man's finger. The finger of a possible murder victim resting on a bible verse that spoke of "things to come".

Revered Charles Williams (66) was last seen alive driving on Twelfth Street in Riverside on Saturday, May 13th 1961 at approximately 2:55pm. Thirty-five minutes later he was discovered by four Norton AFB airmen in his blood-spattered car at 3:30pm on Canyon Crest Drive, 3/10ths of a mile (1584 feet) north of Alessandro Boulevard in an extremely rural area popular with target shooters and hunters. Found behind the steering wheel of his vehicle with a bible in his lap, Rev. Charles Williams was thought to have been shot at close range by possibly two bullets that entered the left side of his head and burst out the other side. Two .32 caliber casings were found in the car which police hadn't yet determined were from the gun that killed him. There were no signs of robbery (with twenty-seven dollars found in his wallet), and no appearance of a struggle with a potential assailant. The bible on his lap was opened to "The Epistle to the Hebrews" from the New Testament, with his finger either deliberately placed, or accidentally pointing at Chapter 11, Verse 20 reading "By faith Isaac blessed Jacob and Esau, even concerning things to come". Investigators considered a possible murder.  

Police questioned whether this was an accidental shooting or murder, but unequivocally ruled out suicide. Investigator's found a shattered bottle not far from the victim's car, so speculated that hunters may have been target shooting and accidentally shot Rev. Charles Williams, having not seen his vehicle because of the hilly terrain. An appeal for any hunters in the area at about 3:30pm to come forward failed to generate any response.

​Deputies found a .22 caliber rifle under the front seat of the vehicle and a .38 caliber pistol in the glove compartment, which tallied with information given by his wife, who told police he owned "a couple of guns". Fragments of the bullets found in Williams car were being checked to identify the gun they belonged to, but as of writing, I have been unable to find any results of this examination. If two shots struck the left side of the victim's head (that were connected to the two casings found in the vehicle), an accidental shooting because of errant shots aimed at a bottle, seems unlikely. Especially if the initial assessment by police of a bullet, or bullets entering from close range was correct.  

Had Rev. Charles Williams parked up in this remote area and was approached by somebody with murder on their mind, had he traveled to this area of Canyon Crest Drive with his eventual murderer in the passenger seat, or was this some freak accident from a stray bullet or two fired from the wilderness? Was his finger purposefully placed on this particular section of the bible to send a sinister message to police, or was he simply reading the bible when shot and his finger fell there accidentally?

The story of his hand being guided over a holy book by a murderer wanting to convey a biblical message to law enforcement, or the victim wanting to impart a final declaration before death, certainly makes for a more intriguing and compelling mystery, bearing in mind police briefly explored the possibility that the "cryptic" Zodiac Killer may have been involved. However, this may be a willingness on the part of investigators to fashion a layer of intrigue into an unexplained death where it isn't required. An eagerness to magnify an already puzzling mystery into divine murder through the guidance of a dead man's finger, so to speak.

Taking into account we have two .32 caliber shell casings in the car that were seemingly different to the two weapons owned by Rev. Charles Williams (according to newspaper reports), and early reports mentioned there may have been two shots to the left side of his head at close range, this is inconsistent with a murderer sitting in the passenger seat of the victim's car. On first look, it appears that Rev. Charles Williams was shot through the driver side window (based on the picture of a left hand drive in the top image).

​The location of his death is about a 6 to 10 minute drive from his last known location on Twelfth Street at 2:55pm (depending where on 12th Street he was last seen), so if he traveled directly to the remote location on Canyon Crest Drive, he would have likely been sitting in his vehicle for approximately 25 to 29 minutes before he was found dead by the four airmen. Detectives stated they had no particular reason to think that Zodiac was involved, but the above newspaper report from the Riverside Daily Enterprise on March 16th 1971 was published only three days after the Zodiac Killer's Los Angeles letter claiming more "riverside activity". 

There is little reason to forge a Zodiac connection to the murder of Rev. Charles Williams other than location. If the killer had deliberately placed the finger of the murder victim over the biblical passage of "things to come", a weak link could be created to the April 30th 1967 Bates' letters where the author wrote "there will be more", and the phrase "she went to the slaughter like a lamb" derived from Isaiah 53:7 and typed into the Confession letter on November 29th 1966. But this is undeniably stretching the bounds of reality and could never be proven without identifying the murderer, if indeed this was a wilful and deliberate act.

Over the weekend of March 13th 1971 numerous calls poured into the Dublin Police Department saying they had seen the infamous Zodiac Killer, days before the Zodiac Killer's Los Angeles letter, mailed in Pleasanton, was released into the newspapers. Pleasanton borders the city of Dublin, situated 40 miles (about 50 minutes journey time by car) from San Francisco. Not only were these sightings a considerable distance from San Francisco, from where the Zodiac Killer usually mailed his letters, but these sightings and letter were 4 1/2 months removed from the last Zodiac communication. Therefore, an uptick in sightings of the Zodiac Killer, at a time and location corresponding to the mailing of a Zodiac letter, has to carry some significance. 

Just under three years later, on January 29th 1974, the Zodiac Killer yet again deviated from San Francisco by mailing a letter from either San Mateo or Santa Clara County. There is good reason why I would like to focus on the possibility that his "Exorcist" letter was mailed in Santa Clara County, in which San Jose is the county seat and largest city. 

The Exorcist letter began in mocking fashion with the writing "I saw + think "The Exorcist" was the best saterical comidy that I have ever seen". The Zodiac Killer's letter was almost certainly a reaction to "The Exorcist" film winning four awards at the Golden Globe ceremony at the Beverly Hilton hotel in Beverly Hills, California on January 26th 1974,  for "Best Film", "Best Director", "Best Supporting Actress" and "Best Screenplay". However, the Zodiac Killer didn't describe the movie as "the best comidy", he described it as "the best saterical comidy", by adding the word "satirical" into the phrase. This doesn't come as much of a surprise, because the Zodiac Killer was equating "The Exorcist" movie with the satirical comedy "The Mikado", which followed on from this introduction (by citing a Tit-Willow verse). Despite the Zodiac Killer likening these two productions through humor, they didn't comfortably sit alongside each other in one communication. 

What reminded the Zodiac Killer of "The Mikado" theater play 3 1/2 years after he had previously referenced it on July 26th 1970? Especially in a communication that capitalized on the recent release of "The Exorcist" movie on December 26th 1973. Had the Zodiac Killer attended a performance of "The Mikado" or read about one in recent weeks? Enabling him to marry the two productions together.    

​If he had, I would expect this performance to have taken place in Santa Clara County in January, to have featured prominently in the newspaper to catch the Zodiac's eye, and to have the word "satirical" front and center of the article. The following newspaper cutting is from the "Sunday Mercury News" in San Jose, Santa Clara County, advertising an upcoming production of "The Mikado" in four performances at the San Jose State University Workshop, from January 11th 1974 to January 13th 1974. Did the Zodiac Killer attend this production and mail his "Exorcist" letter from Santa Clara County, with the inserted word "satirical", to unveil his recent movements? Or at the very least, to suggest that he had recently watched the operetta at the San Jose State University? The Zodiac Killer usually composed his letters by utilizing recent newspaper articles, but was this one of them?

Inspector David Toschi made reference to the Zodiac Killer drawing from Presidio Heights by stating that its significance was overrated and it almost certainly wasted valuable police time chasing down tips based upon it. The sketch today is often argued as an accurate representatiion of the killer by individuals whose "suspect" looks like it, whereas it is rejected as accurate by individuals who see no likeness. Undoubtedly, many calls were received by police from concerned citizens who believed they had spotted the Zodiac Killer walking around town, with these calls more prevalent subsequent to recent newspaper coverage about him. 

One major story about the Zodiac Killer broke in the San Francisco Chronicle on November 16th 1970 about the connection to the Riverside murder of Cheri Jo Bates in 1966. Four months would elapse between this story and the mailing of the Los Angeles letter from Pleasanton on Saturday, March 13th 1971, which hit the newspapers on Tuesday, March 16th 1971  On March 18th 1971 a woman working at a Dublin, California store claimed she rang police on March 11th 1971 about sighting a man who looked just like the Zodiac sketch, but her phone call to Santa Rita police was ignored. Unfortunately, this claim was made after the newspapers released the breaking news of a new Zodiac letter - and with no record of the March 11th 1971 call - this could have easily be dismissed as a woman piggybacking off renewed Zodiac activity. However, an Alameda County sheriff's offiial confirmed that numerous calls were received the weekend before the recent Zodiac letter was published in the newspapers, from persons saying they had spotted the Zodiac Killer in the Dublin area. The Google map location of Dublin is shown as 4 miles north of Pleasanton, where the Los Angeles letter was postmarked. This distance is irrelevant in this case because the two cities actually border one another.    

The police received many phone calls from American citizens claiming they had seen the Zodiac Killer wandering about town, but in this instance there were "numerous calls that poured in" from the Dublin area at the exact time a Zodiac letter was postmarked from Pleasanton, which sat alongside the city of Dublin. Every single Zodiac letter (according to many esteemed Zodiac researchers) was postmarked from San Francisco in 1969 and 1970, until this letter broke with tradition. Downtown Dublin is situated 40 miles (about 50 minutes journey time by car) from San Francisco, from which "numerous people" called in Zodiac sightings over one weekend, as a "confirmed" letter arrived at the Pleasanton sorting office from the Bay Area murderer.

​There are four viable options. [1] The Zodiac Killer was in the Dublin area and was spotted by numerous independent individuals who contacted police, [2] Somebody who looked like the Zodiac Killer sketch was in the Dublin area and was spotted by numerous independent individuals who contacted police. [3] The Zodiac Killer made the phone calls for self-publicity (negated if the calls were established as different people), or [4] The numerous individuals who rang the police were known to one another and manufactured a story that they saw the Zodiac Killer in town, while simultaneously mailing a letter from neighboring Pleasanton and fashioning a hoax. In other words, the Pleasanton letter has nothing to do with the Zodiac Killer. Alternatively, could it be possible that the Zodiac Killer sketch was that accurate, it generated numerous calls from the public, who recognised the Zodiac Killer in Dublin the weekend he mailed the Los Angeles Times letter? As stated previously, sightings of the Zodiac Killer in public were not unusual, but in this instance we had "numerous calls that poured in" from a location 40 miles east of San Francisco, four months after any notable Zodiac activity, in one weekend, when a "confirmed" Zodiac letter was mailed from the neighboring city of Pleasanton. 

There is very little evidence to suggest that the Zodiac Killer had any involvement in the abduction and murder of Donna Lass in 1970, but let's examine the March 22nd 1971 Pines card and the March 13th 1971 Los Angeles letter, mailed nine days earlier. If we look at the Pines card from right to left, it indicates that we have to "pass the Lake Tahoe areas", locate the "Sierra Club" and then search "around in the snow" for any remains. Assuming these were a guide to law enforcement from the South Lake Tahoe Police Department at Fremont Avenue and Mono Way (on the south tip of the lake), they would have had to travel on California State Route 89 "past the Lake Tahoe areas" to Interstate 80. They would then have to travel west to the "Sierra Club" at Clair Tappaan Lodge, and then further west on Interstate 80 an indeterminate distance to locate the remains of Donna Lass "around in the snow". This is giving a generous interpretation to the Pines card, now knowing that the partial remains of Donna Lass were found near Yuba Gap and the Camp Spaulding area. This could be argued as hindsight.

Before you read on, check the newspaper article on the left from the Elko Daily Free Press on November 17th 2000 regarding South Lake Tahoe Detective Tom Conner

There is a high degree of probability that the Zodiac Killer was using the Boise Cascade Incline Village advertisement as a template to identify the Clair Tappaan Lodge "Sierra Club" alongside Interstate 80 and Donner Pass Road..So at the very least, the Zodiac Killer had referenced a location on the northwest side of Lake Tahoe, heading towards the location where the remains of Donna Lass were eventually found on December 31st 1985 and early January 1986 (reported in the newspapers as 1986).

​His previous communication, the Los Angeles letter, was not only postmarked the same day as the general release in the USA of the movie "Vanishing Point", but the letter mimicked the wording from the January trailer of the car chase movie, in which "a radio host from KOW stated "And there goes the Challenger being chased by the Blue, Blue Meanies on wheels. They want to get him and put him away, but there'll have to catch him first". The author of the Los Angeles letter (Zodiac) stated "If the Blue Meannies are evere going to catch me, they had best get off their fat asses + do something". The beginning and ending of the movie (in which the main protagonist, Kowalski, met his death) was portrayed as occurring in Cisco, California (alongside Interstate 80), where the remains of Donna Lass were found close by.

​Consequently, we have two consecutive Zodiac Killer communications (9 days apart) containing material that can be linked to Interstate 80 on the northwest side of Lake Tahoe. Clair Tappaan Lodge and Cisco are 10.55 miles apart (as the crow flies). Of course, the appearance of Cisco in the movie may have had no bearing on the Zodiac Killer when referencing the Vanishing Point movie in the Los Angeles letter (if you believe the premise of the movie connection). It could easily be argued that either connection is fortuitous and coincidental. 

Only the skull and jawbone of Donna Lass has reportedly been found, which could suggest her remains were dispersed by wildlife, or she was murdered elsewhere, dismembered and her remains scattered in the area. The Zodiac Killer didn't necessarily imply a burial site on the Pines card, only that her remains may have been found "around in the snow" (if that is the correct interpretation).  PART ONE. PART THREE

KSZL is a commercial radio station that is licensed to and serves Barstow, San Bernardino County, California, United States. The station is owned by California Communications of Barstow, LLC and broadcasts a news/talk format. The station first signed on in 1947 as KWTC. Originally owned by William T. Brown, Burton C. Boatwright, and Robert E. Reno—doing business as Mojave Valley Broadcasting Company. In June 1950, KWTC joined the Liberty Broadcasting System, an early radio network that carried live re-creations of Major League Baseball games.

On March 13th 1971, the Zodiac Killer mailed a letter to the Los Angeles Times newspaper in response to him being connected to the murder of Cheri Jo Bates in Riverside on October 30th 1966. The letter stated "This is the Zodiac speaking Like I have allways said, I am crack proof. If the Blue Meannies are evere going to catch me, they had best get off their fat asses + do something. Because the longer they fiddle + fart around, the more slaves I will collect for my after life. I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there. The reason I'm writing to the Times is this, They don't bury me on the back pages like some of the others". This letter implied that he was still on the prowl for more victims, while insinuating his Riverside activity down south, in which he borrowed some of his wording from the movie trailer Vanishing Point (1971), a film released in the USA on March 13th 1971. The release date of the film marrying with the date this letter was mailed and postmarked from Pleasanton.     

Vanishing Point (1971) is about a long-distance car chase through the Mojave Desert. The main character, “Kowalski,” is a loner, a Vietnam War veteran, and an ex-cop. He is fueled by drugs that allow him to keep going without sleep, and successfully outruns the police every time a new pursuit begins. Las Vegas, often known simply as Vegas, is the 25th-most populous city in the United States, the most populous city in the state of Nevada, and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and 2nd-largest in the Southwestern United States. Barstow is a city in San Bernardino County, California, in the Mojave Desert of Southern California, which is the natural route along the main highways from the Mojave Desert to San Francisco. In other words, Barstow is in the Mojave Desert, featured in the Vanishing Point movie, that was quoted by the Zodiac Killer in his March 13th 1971 letter, just two weeks before the phone calls to Barstow.

If one phrase summed up the Zodiac Killer, it was "the monster that challenged the world". The title of a 1957 movie starring Tim Holt - a western star, who inspired the comic book series and worked alongside such movie greats as Humphrey Bogart and Ginger Rogers. The majority of the underwater scenes in the film were shot at Catalina Island off the coast of Los Angeles. Other primary filming locations included the Salton Sea, as well as Brawley and Barstow, California. It is speculated by many Zodiac researchers that part of the Halloween card design was inspired by the Tim Holt comic book #30.

THE ZODIAC KILLER PHONE CALLS TO BARSTOW [PART TWO]
​ 
Thanks to Jibberjabber for his assistance in this matter.

When the Zodiac Killer mailed the Los Angeles letter on March 13th 1971 he claimed 17+ victims, with the plus sign likely added to claim "there are a hell of a lot more down there", when referring to his Riverside activity down south. The Zodiac Killer's last known victim count was 14 when he mailed the Halloween card on October 27th 1970. So was the addition of three more victims deliberately chosen with particular murders or disappearances in mind? And what triggered the Zodiac Killer to switch his mailing to the Los Angeles Times newspaper, rather than continue with the San Francisco Chronicle? His suggestion was that he wrote to the Times because "they don't bury him on the back pages like some of the others". This probably wasn't the reason at all.

​The one thing we know for sure about the Zodiac Killer was his propensity to respond to newspaper articles concerning his exploits, or potential victims he may be responsible for. Bearing in mind his switch to the Los Angeles Times, let us take a look at the previous article regarding the Zodiac Killer in the Times newspaper prior to March 13th 1971. One week earlier, on March 6th 1971, the newspaper revealed that the body of Lynda Kanes (20) had been discovered alongside Howell Mountain Road in a shallow grave 15 miles west of Lake Berryessa, and noted that she was a Pacific Union College student just like murder victim Cecelia Shepard. In other words, the newspaper had tentatively connected Lynda Kanes to one of Zodiac's attack sites. Enter the Zodiac Killer, writing to the Los Angeles Times the following Saturday, claiming at least 17 victims. But this may have just been the primer.​         

Nine days later, the Zodiac Killer not only addressed the Pines card to the Los Angeles Times for a second time, but added the San Francisco Chronicle and San Francisco Examiner as well. The Pines card wasn't referring to the once "Missing Coed" Lynda Kanes, but the missing Donna Lass, who disappeared from the Sahara Tahoe Hotel & Casino on September 6th 1970, with her story covered extensively by the San Francisco Chronicle on September 26th 1970. The article, entitled Nurse Vanishes--A Tahoe Mystery, compared the case of Donna Lass to the murder victim, Judith Hakari, who also went missing for seven weeks until her body was discovered in a shallow grave alongside Ponderosa Way in Weimar. Both Donna Lass and Judith Hakari were nurses. However, these crimes were not currently linked to the Zodiac Killer.

The Pines card was clearly suggesting an involvement in the missing Donna Lass case because of the pasted wording "pass Lake Tahoe areas" and "sought victim 12". But the key part of the Pines card may have been the "around in the snow" phrase, pasted upside down, as if to suggest a burial site. Lynda Kanes was found buried in a shallow grave, just like Judith Hakari. So, if the Zodiac Killer could suggest he was the murderer of Donna Lass, who was linked to Judith Hakari, who was buried in a shallow grave - the timing of the Los Angeles letter, coupled with the Pines card, may force investigators to consider the possibility of Zodiac's involvement in all three murders. Hence the victim total rising by three to 17, with Donna Lass to be also found buried.

The Zodiac Killer, had he read the March 6th 1971 article about Lynda Kanes (shown left), would have realized that his name was brought up because of the proximity of the murder victim's gravesite to Lake Berryessa. He would also have known, had he read the September 26th 1970 article about Donna Lass, the close proximity of the murder of Paul Stine and his claimed escape into Presidio park, to the workplace of Donna Lass at the Letterman General Hospital in the Presidio grounds. By linking himself to Donna Lass, he is adding credence to his claim through proximity, and hoping investigators would draw this conclusion too.

The one extremely compelling argument to back up the notion of the Zodiac Killer designing the Pines card is his addition of the phrase "sought victim 12". The claim that the victim total of twelve being out of sequence with other known Zodiac communications is proof of a hoaxer being responsible for the Pines card, is inherently flawed logic. It relies on the premise of a hoaxer, who meticulously and deliberately chose certain newspaper cuttings and pasted five selected phrases onto a postcard, along with taking the time to punch a hole in one corner and scalloping its edges, being so stupid as to not have read any of the previous and numerous newspaper articles about the Zodiac Killer and his widely available running victim totals. The logical conclusion regarding the Pines card, is that it was deliberately engineered using the word "sought", which is the past participle of seek. The suggestion being, that he had once "sought" Donna Lass as his twelfth victim.

This makes perfect sense when we consider that the April 20th 1970 Zodiac letter claimed 10 victims, and his June 26th 1970 Zodiac letter claimed 12 victims. Any victim "sought" between these two dates could conceivably have become Zodiac's twelfth victim. Donna Lass was resident at 4122 Balboa Street, San Francisco between the dates of April 20th 1970 and the early part of June 1970, before she moved to begin her job at the Sahara Tahoe Hotel & Casino on June 6th 1970. A Zodiac Killer trailing or having "sought" Donna Lass before her move to South Lake Tahoe, could have unquestionably targeted her as victim number twelve between these dates. By using the phrase "sought victim 12" in the Pines card, the Zodiac Killer is effectively connecting himself to Donna Lass through San Francisco and South Lake Tahoe, hopefully cementing the belief in investigators minds that he knew Donna Lass over an extended period of time. Of course, he may not have been trailing her at all and may not have been her killer, but by using the "sought victim 12" phrase, he is effectively suggesting this as a possibility to law enforcement in order to boost his credibility.

The information about Donna Lass having worked at the Letterman General Hospital in the Presidio park, close to the Zodiac's final victim of Paul Stine on October 11th 1969 was widely covered in the September 26th 1970 San Francisco Chronicle article, along with the date she moved. Therefore, by incorporating the phrase "sought victim 12" into the Pines card, the Zodiac Killer is bridging the gap between the murder of the taxicab driver and the disappearance of Donna Lass, both indelibly connected to the Presidio Heights district of San Francisco. This phrase wasn't a mistake, it was deliberately fashioned to plant a seed. The Los Angeles Times would form a similar connection to the murder and burial site of Lynda Kanes to the Zodiac Killer's attack at Lake Berryessa. Therefore, the Zodiac Killer mailing two communications immediately after the discovery of her body may have been designed to engineer a conclusion that the Zodiac had not only killed Donna Lass and Judith Hakari, but Lynda Kanes also. The Los Angeles Times letter came nearly five months after his previous communication, but only one week after the discovery of Lynda Kanes' shallow grave, with the passage "I'm writing to the Times (because) they don't bury me on the back pages like some of the others".  

​The murder of Lynda Kanes would eventually be attributed to Walter Williams (aka Willie the Woodcutter), who was ultimately convicted of the crime. 

Here are some interesting observations regarding the Los Angeles letter, postmarked Pleasanton, Alameda County and mailed to the Los Angeles Times on March 13th 1971. This marked a shift in assumed Zodiac correspondence, from mailings in San Francisco to elsewhere. This communication was followed (albeit three years later) by the Exorcist letter (postmarked San Mateo or Santa Clara County), then the S.L.A letter (postmarked Los Angeles), the Badlands card (postmarked Alameda County), and finally the Red Phantom letter (postmarked San Rafael, Marin County). Three of the four 1974 communications referred to films, including The Exorcist, an  American horror film released on December 26th 1973, Badlands, a spree-killer movie released on March 24th 1974 and The Red Phantom, a film that played on April 27th and 28th of 1974 at the Lyric Theater in Mill Valley, California (Marin County). Bearing in mind the deviation in the areas these communications were mailed from, I considered that the March 13th 1971 Los Angeles letter may also have been inspired by a film. Despite finding a likely answer to this question, I then discovered that somebody else had already came to the same conclusion in 2008. Nevertheless, I will feature it here and add a little extra into the equation for people unaware of this connection.     

The March 13th 1971 Los Angeles letter stated "This is the Zodiac speaking Like I have allways said, I am crack proof. If the Blue Meannies are evere going to catch me, they had best get off their fat asses + do something. Because the longer they fiddle + fart around, the more slaves I will collect for my after life. I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there. The reason I'm writing to the Times is this, They don't bury me on the back pages like some of the others".

Everybody knows the Blue Meanies connection from Yellow Submarine, a fictional army of beings who allegorically represent all the bad people in the world. The author of the 1971 letter used this to represent the police. People's Park in Berkeley, California is a park located off Telegraph Avenue, bounded by Haste and Bowditch streets and Dwight Way, near the University of California, Berkeley. The park was created during the radical political activism of the late 1960s. The local Southside neighborhood was the scene of a major confrontation between student protesters and police on May 15th 1969. Reinforcements were called in from the Alameda County Sheriff’s Office, who arrived carrying shotguns and shells of buckshot. They wore pale blue jumpsuits and were quickly nicknamed the Blue Meanies. The author of the 1971 letter used the term "Blue Meannies", but notably, the letter was mailed from Alameda County rather than San Francisco. Was the author of the letter integral to the People's Park uprising, or just somebody who remembered it from the news?

One other notable event at Telegraph Avenue, Berkeley at the same time period, has often been touted as a potential Zodiac occurrence. In the latter half of 1968 in Telegraph Avenue, Berkeley, two girls were offered a lift by a brown-haired man, estimated at 30-40 years of age, yet despite politely declining his offer, indicating their Volkswagen was parked up on the nearby avenue, it appeared he was determined to lure the girls into his vehicle. After declining his offer they proceeded to a local snack bar, where they remained chatting for approximately 45 minutes. After leaving the snack bar they headed back to their vehicle only to discover they were unable to start the Volkswagen, when the man they had encountered earlier promptly reappeared to offer his assistance once more. The man helped the girls push the vehicle along the road, when a second man came along to assist in their plight, but this only seemed to infuriate the initial 'good Samaritan', who then, apparently annoyed by a perceived intrusion, got back in his car and made a hasty exit from the scene. Some time later it was discovered that their car had been tampered with - the distributor cap having been torn from the engine, similar in fashion to Cheri Jo Bates' Volkswagen Beetle. Was the Zodiac Killer somehow integral to Berkeley during 1968 and 1969, and the March 13th 1971 Los Angeles letter was drawing from this experience? Or was the Los Angeles letter fashioned by yet another political activist piggybacking off the Zodiac crimes?       

The Vanishing Point film was released in 1971, so bearing in mind the propensity of certain Zodiac communications to reference movies, in particular the 1974 letters, what relationship does this film have to the March 13th 1971 Los Angeles letter. Well, the film was released to the public in the USA on March 13th 1971. But it had the usual trailer before the film's release. 

The film itself features Kowalski driving a 1970 Dodge Challenger to San Francisco. Through flashbacks and the police reading of his record, we learn that Kowalski is a Medal of Honor Vietnam War veteran, former racecar driver, and motorcycle racer. He is also a former police officer who was quickly promoted to detective, likely for preventing the rape of a young female suspect by his partner in the back of their patrol car. We learn that he was dishonorably discharged from the force, and although the record is classified, other flashbacks hint at the cause. During what was supposed to be an investigation and apprehension of a beautiful woman, Kowalski "goes native" and falls for the lovely blonde Vera. Rather than arrest her, he allows her to "surf off into the sunset" on a cold winter day, once again showing that he understands the people he is charged to deal with as fellow humans rather than just criminals. A newspaper later claims her as his girlfriend, emphasizing that the classified nature of the case was never revealed. Driving west across Colorado, Kowalski is pursued by two motorcycle police officers who try to stop him for speeding. Recalling his days as a motorcycle racer, he forces one officer off the road and eludes the other officer by jumping across a dry creek bed. Later, the driver of a Jaguar E-Type roadster pulls up alongside Kowalski and challenges him to a race. After the Jaguar driver nearly runs him off the road, Kowalski overtakes him and beats the Jaguar to a one-lane bridge, causing the Jaguar to crash into the river. Kowalski checks to see if the driver is okay, then takes off, with police cars in pursuit. Wikipedia.

Here is some of the wording from the trailer: "They want to get him and put him away, but there'll have to catch him first".
The author of the Los Angeles letter stated "If the Blue Meannies are evere going to catch me, they had best get off their fat asses + do something".  The trailer of the film continued with a radio host from KOW reporting the chase "And there goes the Challenger being chased by the Blue, Blue Meanies on wheels". So, was the Vanishing Point trailer the inspiration for the March 13th 1971 Los Angeles letter, with its mailing date deliberately manufactured to marry up with the release date of the film?

Zodiac Killer Message Board on Vanishing Point (1971)

After five murders in a matter of 10 months in 1968 and 1969, followed by numerous communications, 1971 was a watershed year for the Zodiac Killer. When all is said and done, it will probably be remembered as the year Zodiac tried to convince law enforcement he had committed four brutal stabbings, when in fact he had committed none. The Zodiac legacy was coming to an end and his final two communications in the latter half of 1971 failed to make the newspapers, ultimately marking the final days of the Zodiac Killer. He wouldn't be heard from again. When Paul Avery wrote the San Francisco Chronicle article 'New Evidence in Zodiac Killings' on November 16th 1970, it must have been a heavenly blessing for the Zodiac Killer. He was being linked to the Cheri Jo Bates murder in Riverside on October 30th 1966. He would gladly accept this offering on March 13th 1971 when he unashamedly wrote a letter stating "I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there". A man inspired to attack Bryan Hartnell and Cecelia Shepard with a knife at Lake Berryessa, driven by the front page coverage of the August 3rd 1969 Snoozy/Furlong murders in San Jose - something he yearned - not only laid claim to the murder of these two young girls in the November 8th 1969 'Dripping Pen' card, but was only too happy to claim another in Riverside. 

​Then, just one month later, a gift arrived from the Vallejo Times-Herald on April 13th 1971, when the Zodiac Killer saw the words "One thing's certain, Miss Bilek's murder is almost a carbon copy of a double killing Santa Clara County" homicide detective said. "And all three could well be the work of the so-called Zodiac".

The Zodiac saw the publicity generated from the brutal stabbing of Deborah Furlong and Kathy Snoozy on August 3rd and capitalized on this at Lake Berryessa in September. It had now paid dividends on April 11th 1971, when Kathy Bilek (18) visited Villa Montalvo in Saratoga, having planned to read a paperback book (The Gabriel Hounds) and engage in a spot of bird watching​ in the seclusion of a remote, wooded portion of the park, near a small stream. Her body was found the next day by her father, Charles, while Santa Clara County Sheriff's deputies searched nearby. She had been stabbed 17 times in the back and 32 times in her chest and stomach. This crime was obviously linked to the Snoozy/Furlong murders because of the extensive knife wounds and the locality. But by committing the savage knife attack on Bryan Hartnell and Cecelia Shepard at Lake Berryessa and hinting at his involvement in the San Jose murders of Snoozy and Furlong, the Zodiac Killer had now been given the opportunity by Paul Avery to accept the Riverside murder in 1966, along with the Kathy Bilek murder by the Vallejo Times-Herald on April 13th 1971. His switching to a knife in the commission of murder would inevitably lead law enforcement to link him to more crimes - something he knew only too well.

The 'Monticello' card mailed on July 13th 1971 was open-ended. It didn't directly claim the murder of Kathy Bilek, thereby allowing him a get out clause should this crime be later attributed to somebody else. The Zodiac Killer had used this tactic before when he insinuated his involvement in the murder of Officer Richard Radetich by stating "I shot a man sitting in a parked car with a .38". Then in the 'Pines' card, by again offering a cryptic message open to interpretation. He never actually claimed the murder of Cheri Jo Bates, simply stating "I do have to give them credit for stumbling across my riverside activity". Everything designed in such a fashion to avoid full admission.

The "August" reference on the 'Dripping Pen' card, while not actually writing it on the car door of Bryan Hartnell's vehicle, had metaphorically opened the door to the speculation shown by law enforcement in the article by the Vallejo Times-Herald. The September 27th 1969 attack, effectively enabled the Zodiac Killer to extend his reign of terror far beyond the shores of Lake Berryessa, into the heart of San Jose. The July 13th 1971 'Monticello' card was now the fifth communication referencing San Jose in the last 20 months - but there was still time for one more.

The final communication of 1971 may have been the elusive 'Sacramento DMV' letter, probably mailed in the November or December of 1971. This correspondence likely mirrored the November 21st 1969 San Jose letter and code, in which the Zodiac Killer mailed a correspondence to the San Jose Police Department and threatened a "widow". I have little doubt this woman had some involvement in the Deborah Furlong and Kathy Snoozy murders from the perspective of an eyewitness, and by Zodiac threatening her, he was effectively giving the impression that the murders were somehow pertinent to him. The Sacramento DMV letter was used for the same purpose - to keep the Zodiac story alive by means of interjection.  
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In October 1971, a magazine publication entitled 'True Detective' comprehensively featured the murders of Kathy Snoozy, Deborah Furlong and Kathy Bilek, and the subsequent arrest of Karl Francis Werner. There is every chance the Zodiac Killer read this magazine article, compelling him to continue his contact with authorities regarding these murders.

One particular section about Kathy Bilek caught my eye - that may have been the reason why the Zodiac Killer wrote a letter to the chairman of the DMV in Sacramento. It stated "At about the same moment, Park Ranger Ken Williamson was informing a member of the investigative team that he, too, had noticed a tall, bespectacled young man who had been a frequent visitor at Villa Montalvo. He was a loner and had impressed the Villa's ranger staff with his almost furtive conduct, said Williamson. The ranger had jotted down the license number of the strange youth's auto.
The license number was forwarded to the California Department of Motor Vehicles headquarters in Sacramento, the state's capital 150 miles to the north of San Jose. The information teletyped back from the registration bureau was that the auto was the property of a Karl Francis Werner, living at an address on Shawnee Lane in San Jose."

This was the final entry point of the Zodiac Killer. The 'Monticello' card and 'Sacramento DMV' letter had failed to hit the newspapers - and the reign of the Zodiac Killer had reached its end. The arrest of Karl Francis Werner for the three murders in San Jose had finally exposed the Zodiac Killer for the fraud he had metamorphosed into. The long shadow he had cast over the Bay Area of Northern California was starting to recede - and he knew his days were numbered.

The identity of the Zodiac Killer still remains a mystery after nearly five decades of searching, despite numerous suspects being thrust into the limelight, some with more merit than others. This often involves digging deep into the history of the suspect, their profession, acquaintances, social life, personality and movements in and around the Zodiac timeline, to get a better understanding on their viability as a serial killer. But in the following analysis we shall do the complete opposite and examine what the Zodiac Killer didn't do. The only tangible evidence we have to go on, are the crimes themselves and the correspondence he mailed, so we shall use these to search for any anomalies or departures from the expected, bearing in mind that the Zodiac Killer courted attention, with an insatiable appetite for baiting the newspapers for nigh on five years. However, two things stand out during the Zodiac timeline, one of which happened, or should I say didn't happen after the 'Los Angeles' letter mailed on March 13th 1971, that is particularly telling. Or quite possibly after the 'Pines' card mailed on March 22nd 1971, if you are inclined to believe this card to be genuine Zodiac material. The second is something that has been covered before in an article entitled 'Away for the Winter', and concerns the Zodiac Killer's notable absences during three consecutive years. For now though we will concentrate on the March of 1971.  

The Zodiac Killer remained silent for nearly three years until the Exorcist letter surfaced on January 29th 1974, widely regarded as his final correspondence - although a further three communications would be received in the February, May and July of that year. The S.L.A. letter was postmarked February 3rd 1974, the Citizen card was postmarked May 8th 1974 and the Red Phantom letter was postmarked July 8th 1974. Every other correspondence after this year has generally been received with widespread skepticism. Recently, an article on Zodiac Revisited sparked my interest detailing the Zodiac Killer movie released in the April of 1971, just one month after the 'Los Angeles' letter was mailed on March 13th 1971 and six months after the Halloween card mailed and addressed to Paul Avery on October 27th 1970. This article covers many aspects of the movie. Michael Cole, the author of this website and the Zodiac Revisited book due for release in 2019, highlights the involvement of Paul Avery as a consultant to the movie, and is credited as such on the Internet Movie Database.
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​So, bearing in mind the Zodiac's insatiable ego and penchant for letter writing, one would have expected the Zodiac Killer to have found it extremely difficult to resist contacting the newspapers to give us his review of the movie, considering he had no hesitation in giving us his opinion on The Exorcist and Badlands movies. The Exorcist movie was released in the USA on December 26th 1973 and one month later the Zodiac Killer would give his appraisal of the movie, calling it "the best satirical comedy that I have ever seen". The Badlands movie went on general release in the USA on March 24th 1974 and featured in his 'Citizen' card correspondence just over a month later, yet the Zodiac Killer failed to ever mention anything about a movie solely dedicated to his murderous rampage, when 'The Zodiac Killer' was released on April 7th 1971, directed by Tom Hanson. The Zodiac Killer replied to Vallejo Police Chief Jack E. Stiltz in the San Francisco Examiner on August 4th 1969, replied to Chief Martin Lee in the San Francisco Chronicle on November 9th 1969 and to journalist Paul Avery in a personalized Halloween card, yet in the instance, absolutely nothing. ​Eight months later, the Zodiac Killer would get a reprieve when the much higher profile movie 'Dirty Harry', starring Clint Eastwood, was released on December 23rd 1971 featuring aspects of the Zodiac case - a movie that wouldn't have escaped Zodiac's attention. Here was the perfect opportunity to bathe in his notoriety, but yet again, absolutely nothing. In fact, the Zodiac Killer would apparently keep up this silence for nearly three years until the Exorcist Letter in the January of 1974, commenting on a movie that has nothing to do with him. His moment in the sun had been lost. The Exorcist letter signed off with a threat: "P.S. If I do not see this note in your paper, I will do something nasty, which you know I'm capable of doing." I'm afraid he was three years too late.     

The three year hiatus was broken by the confirmed Exorcist letter, mailed on January 29th 1974, indicating he was still alive. So what interrupted his insatiable appetite for communication. It may be likely that he was incarcerated during this period for a lesser offence, curtailing his murderous exploits and communications with the newspapers. An inability to maintain his contact with the world surreptitiously from the confines of a cell, with constant vetting of correspondence, would certainly negate his literary prowess, thereby utterly refuting his exaggerated claim of 37 victims in the Exorcist letter. He may have massively increased his victim total by 20 since the 'Los Angeles' letter nearly three years ago, to give us the impression he was footloose and fancy free during this time period.
 
​One avenue to unearth the identity of the Zodiac Killer is to examine this three year period of 'absentia', which may ultimately prove more fruitful than examining the crimes and letters themselves. If we believe the Zodiac Killer to be a resident of the Bay Area, then it makes perfect sense to examine prison records of the locality and work outward - starting with San Quentin Prison, located in Marin County. The 'Los Angeles' letter was mailed on March 13th 1971 and the 'Exorcist' letter on January 29th 1974, so a prisoner jailed in late March of 1971 or possibly April or May, and released in late 1973 or early 1974, for a time period approximating two and a half years, may just give us the identity of the killer we have yearned. The answer may not lie in the crimes the Zodiac committed, but more in the crimes he didn't commit.

A special thanks to Michael Cole.- Zodiac Revisited.   

Recent events have shone some new light on the murder of Meadowbrook student Nikki Alexandra Benedict, just shy of forty seven years ago in Poway Road, Poway, California on Monday May 1st 1967. The young 14-year-old girl was traveling back home to Olive Tree Lane when her journey was cut short by an unknown assailant, who to this day remains a mystery.
She had left her friend's house, situated on Halper Road in the early evening hours and it was in the region of the 12700 blocks of Poway, 100 yards from the Carriage Road intersection that her life was cruelly snatched away by fatal stab wounds to her chest. See area on Google Maps. Nikki Benedict was discovered alive at approximately 6:30 pm by a local boy Ronald Fisk (11), who raced to get help on his bicycle to his fathers shop nearby. Bob Fisk ran a butchers store in Poway throughout the 1960s and 70s. 

Cheri Jo Bates was brutally stabbed outside the Riverside City College library after the killer had sabotaged her Volkswagen Beetle in the pretense of luring the young student to her death. One month later, on November 29th 1966, a typed Confession Letter was received at the Riverside Police and Riverside Enterprise detailing the murder, and culminating with the chilling words "Beware....I am stalking your girls now". Five months later came the murder of Nikki Benedict on May 1st 1967.
However, there is little to link the two cases other than a vague suggestion by the Zodiac Killer that there was a "lot more down there". On the face of it, this appears to be an unlikely Zodiac connection, but all avenues must be explored for the sake of the family and friends of Nikki Benedict, who surely after 47 years of questions deserve some form of resolution to her cruel murder.

This murder took place the day before the Zodiac Killer's Button Letter was received at the San Francisco Chronicle on 26th June 1970, claiming he had "shot a man sitting in a parked car with a .38". However, the location in San Diego, and the traveling distance back to San Francisco makes any connection to the Button Letter, as well as the Zodiac Killer, unlikely.  Nevertheless, it provides a significant timeline between the murder of Larry Hargis and the mailing of the Button Letter to the San Francisco Chronicle the following day.

Any information regarding either of these cases, please contact the San Diego Homicide Detail by visiting their website below.
http://www.sdsheriff.net/coldcase/index.html. Thank-you.

It has been widely considered that the Exorcist letter mailed on January 29th 1974 may have been the final correspondence from the infamous Zodiac Killer. But is its claim of 37 murders, if indeed this is what was meant, a realistic one. Firstly, we will take the unusual step of acknowledging the Zodiac Killer at his word, when throughout his campaign of terror he constantly informed the authorities of his murder count, displayed on each subsequent letter or card. But how accurate were his claims, and could a timeline of potential Zodiac victims be attributed to the periods in between each correspondence, bearing in mind that his declaration of seven murders on the Dripping Pen card of November 8th 1969 could be attributed with almost complete accuracy, albeit the missing murders in August, has still yet to be fully resolved. As stated previously, the months displayed at the foot of the Dripping Pen card could indicate the murder of David Faraday and Betty Lou Jensen in December, Darlene Ferrin in July, Cecelia Shepard in September, along with Paul Stine and Cheri Jo Bates in October. This meant six murders possibly attributed and one unaccounted for, due to his proclamation on November 8th 1969 indicating a total of seven victims up to this point.

So let us examine the period from this letter to the next confirmed Zodiac correspondence on December 20th 1969, that of the Melvin Belli letter, claiming he may lose control and claim a ninth and tenth victim. The suggestion of a search for a ninth and tenth victim, by inference, meant he had already claimed his eighth murder victim and it must have occurred between November 8th 1969 and December 20th 1969. So who was the most likely Zodiac victim, based on age, locality and nature of the crime during this time period. One possibility is Betsy Aardsma, murdered in the campus library of Pennsylvania State University on November 28th 1969 - although this crime has a number of question marks, including the locality - seemingly out of kilter with what we know of the killer to this point. There is, however, another interesting case that deserves closer scrutiny.          

Incidentally, a woman's body was discovered next to Paradise Drive, Belvedere, Tiburon in December 1966 - although the body, wearing a red dress had lain undiscovered for approximately three to four months, according to Marin County detectives. Also on December 1st 1969, Elaine Davis (17) disappeared from from her home in Walnut Creek, Contra Costa County, California. She was abducted during the evening hours through a sliding rear window. Two and a half weeks later on December 19th 1969 her body was discovered floating off  Light House Point, Santa Cruz, California, however, due to investigators misinterpreting the age of the victim at the time, her identity was only realized 31 years later when officials exhumed the body in 2000.
No link was ever ascertained between the murder of Elaine Davis and Leona Roberts, however, both victims fell within the correct age, area and timeline of the Zodiac Killer.    

On March 22nd Kathleen Johns was abducted and taken on a terrifying journey by an assailant she later claimed to be the Zodiac Killer. Even the Zodiac himself claimed his involvement, when he mailed a letter to the San Francisco Chronicle on July 24th 1970. There were many murders and disappearances in California during the month of March, including Cosette Ellison on March 3rd, Patricia King on March 5th, Judith Hakari on March 7th, Marie Anstey on March 13th and Eva Blau on March 20th. However, the 'My Name is...Letter' and Bus Bomb Diagram claimed 10 murders on April 20th 1970, with the Melvin Belli letter on December 20th 1969 indicating that 8 murders had taken place. If we therefore take the Zodiac at his word, only two murders had taken place in this four month period. If John Hood and Sandra Garcia were Zodiac victims, then none of the disappearances and murders in March were anything to do with the Zodiac Killer. On the other hand, if the Hood and Garcia murders were not Zodiac victims, then only two of these victims in March remain a possibility, not more. Unless for some reason only known to the killer, he committed more murders, yet failed to attribute them to himself. 

Moving forward two months to the Button letter on June 26th 1970, the Zodiac claimed 12 murders. He also stated he had "shot a man sitting in a parked car with a .38". The only event that tallied with the Zodiac's claim was the murder of police officer Sgt Richard P. Radetich (25) on June 19th at 5:25 am, who was gunned down by three shots from a .38 caliber revolver at point blank range through the driver side window of his vehicle while in the process of serving a parking ticket. He was seated in his police car by 643 Waller Street, when it is believed another vehicle pulled alongside and an occupant opened fire. Officer Richard Radetich would die 15 hours later. However, the Zodiac Killer, who almost always gained extreme pleasure from his mockery towards the police and authorities, only referred to his victim in the Button letter as a 'man', apparently failing to capitalize on the situation. This appears to shed reasonable doubt that he was responsible for the murder of Sgt Richard Radetich, although the caliber of the weapon was correct. 

The disappearance of Donna Ann Lass (25) from the Sahara Tahoe Hotel on September 6th 1970 seemed to push the Zodiac's murder count to 13, with the Halloween card mailed on October 27th 1970 proclaiming a possible fourteenth victim, arriving just two days after the murder of Nancy Bennallack (27), a court reporter, on October 25th 1970. Nancy Bennallack had been slain in her own apartment on Arden Way and Bell Avenue, Sacramento , cut down by over 30 knife wounds, indicating the severity of the brutal murder - although she had not been sexually assaulted. The crime scene indicated that the killer may have used tape to mask over his fingertips during the attack.  

Finally, onto the Los Angeles letter, mailed on March 13th 1971, where he laid claim to an estimated 17 or more murders.
In this letter he stated "I do have to give them credit for stumbling across my riverside activity, but they are only finding the easy ones, there are a hell of a lot more down there". He was apparently referring to the fact that detectives had forged a link between the Zodiac Killer and the senseless slaying of Cheri Jo Bates in Riverside on October 30th 1966, claiming there were many more victims in that region. 

One such attack, was the Robert Domingos (18) and Linda Edwards (17) double murder on June 4th 1963. The young couple were gunned down on a beach near Tajiguas Creek, Lompoc, Santa Barbara County. The killer had initially attempted to bind the couple, reminiscent of the Lake Berryessa Attack on Bryan Hartnell and Cecelia Shepard on September 27th 1969. But clearly, if the Zodiac was responsible for this couple's murder, along with Cheri Jo Bates, then his murder total should have read 8, by the mailing of the Dripping Pen card on November 8th 1969, which clearly it didn't. The suggestion of "there are a hell of a lot more down there", seems to conflict with his declaration on the Dripping Pen card of seven murders. The only reasonable explanation being, that these murders were not committed under the Zodiac umbrella. A pseudonym he would only adopt just prior to the 'Debut of Zodiac' letter, received by the San Francisco Examiner on August 4th 1969. The killer may have belatedly attached the 1963 murders of Domingos and Edwards, and the Riverside murder of Cheri Jo Bate to the Los Angeles letter claiming 17+ murders. This may explain the increase from the 14 victims claimed in the Halloween card approximately five months earlier.