Gaikowski also supposedly attending Paul Stine's funeral.
He also abbreviated his surname to Gaik and Gike, providing a source of the four letters found in the cipher sent to the San Francisco Examiner on July 31st 1969, albeit with the insertion of the letter Y and therefore could be merely statistical coincidence.(see below)
He resembles closely the famous composite sketch of the Zodiac killer, and upon hearing his voice in later years Nancy Slover, the police dispatcher who took a call from the killer at 12.40am on July 5th 1969, approximately 40 minutes after the murder of Darlene Ferrin and attempted murder of Michael Mageau at Blue Rock Springs Park , said that it was the same voice that had spoken to her way back in 1969, and although many years had passed until she eventually heard the recording of Gaikowski's voice, she has good reasons not to forget it,with the killers voice indelibly etched into her brain.
But despite several more interesting connections, nothing concrete ties Richard Gaikowski to any of the crimes.
Michael Butterfield is one of the foremost Zodiac experts, having been an adviser for the film Zodiac and questions any link to Gaikowski as tenuous, with the credibility of Goldcatcher under scrutiny as a reliable source, despite having gained high profile advocates such as Tom Voigt from the hugely successful website Zodiackiller.com.
Butterfield stresses his interviews with leading detectives as most compelling, such as Ken Narlow and his involvement with the Lake Berryessa case, Ed Rust's connection with Blue Rock Springs and Pierre Bidou on the Lake Herman Road murders and firmly believes Tom Voigt has railroaded Gaikowski in as the prime suspect off the back of a host of dubious claims and the ever changing stories of the so-called Goldcatcher.
Despite this suspect continuing to be put forward off the back of ever vague links, the SFPD have ruled Gaikowski out, despite claims their failure to pursue evidence lines, as tantamount to some sort of conspiracy.
Michael Butterfield stresses even when a suspect is ruled out either by DNA or fingerprints, the Zodiac theorist fails to be convinced, claiming tests were never conducted, or conversely dream up ever incredulous theories to explain away how their suspect circumvented their capture by fantastical explanations, as did Robert Graysmith in his conviction that Arthur Leigh Allen was the Zodiac despite increasing evidence to the contrary.
Recently Bode Technologies have performed touch DNA on letters sent by Richard Gaikowski, but when the results came back they produced two mixed DNA profiles of a male and female assumed to be Robert Loomis and his wife, who had also handled the letters being friends of the suspect, so further tests were undertaken on the sealed part of the envelope ie:an area protected from extraneous handling and it produced a partial male DNA profile.
In 2002 the San Francisco Police Department extracted a partial DNA profile from a letter sent to the San Francisco Chronicle and believed to be that of the Zodiacs.
Mystery Quest requested the DNA profile from police for a comparison but they refused, and as a result Mystery Quest have sent their results to police, in the hope they will check for any match and either incriminate or eliminate Richard Gaikowski from this long running investigation.
Mystery Quest have also sent their findings to the Napa County Sheriff's Office so they can rule in or out any connection to the Lake Berryessa Attack, when compared to DNA possibly lifted from the bindings used to tie up Bryan Hartnell and Cecilia Shepard on September 27th 1969.
Go to the 20th line on the 408 cipher, symbols 4 to 7 and transplant these four letters GYKE onto the 20th line, symbols 4 to 7 of the 340 cipher like so, to form GYKES ZODIAC or GYKEAUSEKEYS ZODIAC.
1963 June 4th-The Domingos/Edwards Murders
1966 October 30th-The Cheri Jo Bates Murder
1966 November 29th -The Confession letter
1966 December- The Riverside Desktop Poem
1967 April 30th- Bates had to die letter
1968 December 20th-The Lake Herman murders
1969 July 4th-The Blue Rock Springs Attack
1969 July 31st- Vallejo Times Herald letter and
408 Cipher Page1 (solved)
1969 July 31st - Chronicle letter and
408 Cipher Page 2 (solved)
1969 July 31st- Examiner letter and
408 Cipher Page 3 (solved)
1969 July 31st-The Complete 408 Cipher
1969 August 4th- Debut of Zodiac letter
1969 September 27th- The Lake Berryessa attack
1969 October 11th-The Presidio Heights murder
1969 October 13th-The Paul Stine letters
1969 October 20th-Call to chat show
1969 November 8th-The Dripping Pen Card and
340 Cipher (unsolved)
1969 November 9th-The Bus Bomb letter
1969 November 28th-The Betsy Aardsma Murder
1969 December 16th-The Fairfield Letter
1969 December 20th-The Belli letter
1970 Feb 21st- The Hood and Garcia Murders
1970 March 22nd-The Modesto attack
1970 April 20th-"My Name is" Letter,
Cipher 3 (unsolved) and Bus Bomb diagram
1970 April 28th-The Dragon Card
1970 June 26th-The Button letter,
Cipher 4 (unsolved) and map
1970 July 5th-The Sleeping Bag Murders
1970 July 24th-The Kathleen Johns Letter
1970 July 26th-The Little List Letter
1970 Sept 6th-The Donna Lass Disappearance
1970 October 5th-13 Hole Postcard
1970 October 27th-The Halloween Card
1971 March 13th-The Los Angeles Letter
1971 March 22nd-The Pines Card
1972 November 13th-The Santa Barbara Attack
1974 January 29th-The Exorcist Letter
1974 February 14th-The SLA Letter
1974 May 8th-The Citizen Card
1974 July 8th-The Red Phantom Letter
1978 April 24th-The 1978 Letter
1990 December-American Greetings Card
2004 August 18th-Cutshall and Allen Murders
1986 April 22nd- Saechao and Salee Murders
1972 April 7th-Tamalpais Valley attack
1967 June 8th- Molina and Rodriguez Murders