
Admittedly, the police report is poorly written, and can be interpreted as 10pm if we rely solely on the "time testimony" given by Bingo Wesner (a Rancher at the Old Borges Ranch by Humble Oil, Benicia). He was quoted by police as saying "last night he was checking his sheep at approximately 10:00pm (east of the Benicia Pumping Station) and he observed a white Chevrolet Impala Sedan, parked by the south fence of the entrance to the pumping station. He also observed a red Ford pick-up with wood side boards in the area (the pick-up was later identified as the one Frank Gasser and Robert Connelly were riding in)". Bingo Wesner was also quoted as saying "that when he came out of the gate he saw the same Impala and also saw the red pick-up truck go by". It is whether his sighting of the red pick-up truck "go by" and "in the area" is one event or two. Zodiac researcher, Ray Grant, staunchly argues that Robert Connelly's timing was off by one hour, and he passed the gate #10 turnout at 10pm. It's fair to say that sizeable portions of the Lake Herman Road section of his book, "Zodiac Killer Solved", relies on Connelly & Gasser heading to the Marshall Ranch and passing the turnout at approximately 10pm. The Marshall Ranch entrance was 960 feet west of gate #10. So let us examine the validity of Ray Grant's assertions.
Let us now jump forward to the time when they had concluded their night's hunting and were heading back to the driveway of the Marshall Ranch. Robert Connelly stated in the police report that after they had finished hunting that night "it took them about 10 minutes to walk back to the truck". Bearing in mind it was a cold dark night, Frank Gasser was 69 years old, with two dogs in tow, walking on uneven terrain and carrying weapons, a generous estimate of their walking speed would be 3 feet per second. Therefore, we can approximate a position on the hillside to 1800 feet from the Marshall Ranch entrance (a 10 minute walk back}. From this we can calculate the distance to this point from the gate #10 turnout of 1022 feet (see below). They may have started hunting raccoons by the trees in that area. The police report said they "treed either a cat or raccoon in the area of the Dotta Ranch", which was situated south of the treeline, underneath Lake Herman. So they probably began their hunting from the eastern edge of the treeline and headed west.

They arrived back at their red pick-up truck at approximately 10:50pm according to Ray Grant. If we add the 16 minutes calculated above to 10:20pm, we get 10:36pm. This would have left only 14 minutes available hunting time for Robert Connelly and Frank Gasser that night, if they were to make it back to their truck by 10:50pm. If Frank Gasser (along with Connelly) had walked directly from the gate #10 turnout after observing the Chevy at 10:20pm, to the area of the Dotta Ranch to begin hunting (by the blue circle}, then their available hunting time becomes less. However, when they left gate #10, they may have started hunting at the arbitary point 1,022 feel from the turnout and walked along the treeline in a westerly direction, hunting as they went. The blue circle is still approximately 10 minutes walking time back to the Marshall Ranch entrance.

On the other hand, if we go with the observations of Ray Grant, Robert Connelly would have traveled 20 miles to the Gasser Ranch on Highway 21, arriving there at 6pm and spending about 3 hours and 45 minutes with Frank Gasser, before they both headed towards the gate #10 turnout, passing this location at 10pm. Once they had arrived at the Marshall Ranch and had eventually (after viewing the Chevy) made their way to the eastern edge of the tree-lined area near the Benicia Pumping Station, they would only have had about 14 minutes hunting time before needing to walk back to their vehicle. Had Robert Connelly and Frank Gasser passed the gate #10 turnout earlier that night at 9pm (and visited the Chevy), this would have given them a maximum of 74 minutes for their raccoon hunting. Which is more realistic?

The police report clearly states that William Crow was in the "Lake Herman area" between 9:30 PM and 10:00 PM, not in the "turnout" between 9:30 PM and 10:00 PM. He was "driving his girlfriend's sports car and he was testing it out and adjusting the motor". So if he was "driving" it during this time, he couldn't have been in the turnout for the whole 30 minutes. He only referred to the one instance he was in the turnout - and that was when he noticed the Valiant coming from Vallejo. This is when he was "adjusting the motor". The rest of the time he was probably "driving around", checking if the adjustments had worked. He and his girlfriend could have been in the turnout a matter of minutes between 9:30 PM and 10:00 PM - and this would easily explain why he heard no gunshots that night. Because he wasn't near the area of the pumping station for the vast majority of the 30 minutes.
RAY GRANT'S ROAMING CHEVROLET IMPALA
THE CONNELLY AND GASSER SIGHTING OF THE CHEVROLET IMPALA WAS 9PM
HUNTING BY THE BENICIA PUMPING STATION
CONNELLY AND GASSER NEVER SAW WESNER
WAS THE HELEN AXE SIGHTING WRONG?