"As both Robbins kids were the oldest, their statements were the given the most weight. Also they were the least traumatized by the event. One of the kids (not sure which) noticed a cab parked outside (in that now famous spot) with the interior lights on. So when Lindsey told me that the light inside the car was like a spotlight, it was so bright.
The first kid at the window said the driver looked "sick, or something". Lindsey and Rebecca went to the window and saw the driver laying across the front seat, head toward the passenger door. His head was in the lap of another man (passenger). Rebecca saw blood and said out loud, "he's stabbing that man." She was seeing blood on the victim and saw the glint of a knife, so she assumed a stabbing was taking place. (No shots were heard by anyone).
We know now that Zodiac was cutting off a large piece of Stine's shirt with the knife.
At this time, Lindsey went downstairs to get a better look at what was happening, while one of the kids upstairs called the police. Downstairs, the lights were off, so Lindsey knew he could not be seen from the outside. He got close to the window and watched his actions. He was shortly joined by Rebecca. They both watched and observed in silence as Zodiac pushed the driver to an upright position behind the steering wheel, exited the car and walked around the rear of the car and opened the driver's door. Stine had fallen over onto the seat and Zodiac pulled him back up into the seated position and had some difficulty keeping him upright. Once upright, he was seen to have a rag, or something like a handkerchief and began to wipe down the door area and leaning over the driver, part of the dashboard. When he was finished, Zodiac calmly walked to Cherry St. and walked north.
Not many know this, but Lindsey (being 16. feeling immortal, and believing the suspect to be armed with only a knife) ran out of his door to see where Zodiac was going. He ran to the corner of Cherry and watched as Zodiac continued his casual pace right up to the corner of Jackson & Cherry.
At this exact point, the first SFPD car arrives with two officers. One, Pelissetti, approached Lindsey and tried to extract what was happening. The other officer went to the cab and found the bloody victim. While Pelissetti was asking questions, Lindsey was trying to explain that the suspect was in sight on Cherry St. By the time Pelissetti got the point, they both looked and the Zodiac was gone." http://www.zodiackillersite.com/viewtopic.php?f=30&t=402
However, there is one big problem with this version, it seems incompatible with the statement of Zodiac being stopped or being passed by Donald Fouke near the intersection of Jackson and Maple Street, either at the intersection itself or by 3712 Jackson Street, as he claimed in the 2007 Zodiac documentary. This 'meeting' was confirmed by Donald Fouke in his November 12th 1969 memorandum and by Zodiac in his 'Bus Bomb' letter mailed on November 9th 1969; "p.s. 2 cops pulled a goof abot 3 min after I left the cab. I was walking down the hill to the park when this cop car pulled up + one of them called me over + asked if I saw anyone acting suspicious or strange in the last 5 to 10 min + I said yes there was this man who was runnig by waveing a gun & the cops peeled rubber + went around the corner as I directed them."
Below is a sketch of the relevant streets.
The initial radio broadcast was issued simultaneously to responding officers, that included Donald Fouke and Armond Pelissetti. It has been suggested, that to explain the timeline discrepancies, that possibly these two responding police vehicles may have received the broadcast at different times. This is not the case, as the radio dispatcher summoned the vehicles under one broadcast, detailed as 9.58 pm on October 11th 1969. Robert Graysmith, Zodiac "The operator jotted down the answers. Immediately, the card was handed to the dispatcher, who leaned forward over his lighted panel, consulted a complex map of San Francisco divided into districts and sectors, and broadcast a general call to all police units, cars and wagons: an APB (All Points Bulletin)." Donald Fouke and Armond Pelissetti were close by and responded at 9.58 pm. On the police report, the time of the attack was given as 9.55 pm.
At this exact point, the first SFPD car arrives with two officers. One, Pelissetti, approached Lindsey and tried to extract what was happening. The other officer went to the cab and found the bloody victim. While Pelissetti was asking questions, Lindsey was trying to explain that the suspect was in sight on Cherry St. By the time Pelissetti got the point, they both looked and the Zodiac was gone."
Armond Pelissetti arrived at the exact point Zodiac was approaching the corner of Jackson and Cherry. This is not possible based on what we already know.
Donald Fouke received the initial radio broadcast at 9.58 pm, and arrives at 3712 Jackson Street approximately one minute later, where he spots Zodiac. This is now 9.59 pm. Zodiac has taken 2 minutes 24 seconds to get here from the crime scene. This means Zodiac would have left the crime scene at 9.59 pm minus 2 minutes 24 seconds. Therefore Zodiac left the taxicab at 9.56:36 pm. The distance from the taxicab to the corner of Jackson and Cherry is 100 meters or 1 minute 12 seconds. This now places Zodiac at the intersection of Jackson and Cherry at 9.57:48 pm, the same time Armond Pelissetti pulls up to the crime scene according to the Robbins kids. The problem is, he received the initial radio broadcast at 9.58 pm and was still not at the crime scene. The differences may seem marginal, but something is slightly off. I have no reason to disbelieve the Robbins kids version of events, and with a slight adjustment we can reconcile this anomaly and bring both accounts into line.
If the Zodiac had upped his walking speed to 5 mph, just shy of jogging for this critical period, then he is approaching 3712 Jackson Street 90 seconds after leaving the crime scene. We have little wriggle-room with Donald Fouke's timeline, who approaches Zodiac at 9.59 pm. This now means Zodiac left the crime scene at 9.57:30 pm, and reaches the intersection of Jackson and Cherry at about 9.58:15 pm - 9.58:30 pm. This would mean Armond Pelissetti arrived at the Washington and Cherry intersection 15 to 30 seconds after the initial broadcast and backs up his statement in the 2007 Zodiac documentary that "we fortunately were very close and responded to that corner, and able to do so red light and siren." It also backs up the Robbins kids statement, that as Pelissetti arrived at the corner of Washington and Cherry, Zodiac was just approaching the corner of Jackson and Cherry Street.
Of course this timeline may be slightly different, even the initial broadcast may be seconds either way, but it likely negates Zodiac's claim of "p.s. 2 cops pulled a goof abot 3 min after I left the cab." The 'meeting' with Donald Fouke's patrol car was closer to 90 seconds after he left the taxicab and would certainly explain that as he heard Armond Pelissetti's vehicle arriving 'red light and siren' to the crime scene, having just left, he would have upped his walking pace.
This allows the statements of the Robbins kids in the subsequent interview, to be seamlessly incorporated into the timeline we already have for Donald Fouke and Armond Pelissetti. The only difference, is that the calm persona crafted by Zodiac and his internet pursuers in this case, may just be another figment of imagination, that simply never happened.
If this version of events by the Robbins kids is factual and Armond Pelissetti was aware of what they were saying, then Zodiac still had at least one minute to reach the intersection of Jackson and Maple, and plenty of time for responding officers to cut him off, including Donald Fouke. But without knowing the complete accuracy of any subsequent statements in the Zodiac case, including this one by the Robbins kids, it is impossible to apportion culpability to any individual.