The police report clearly states on page 2 that the "suspect was last seen walking north on Cherry Street, from Washington Street". There is no mention of the Zodiac Killer's movements after this sighting. In other words, by 6:29 am on October 12th 1969, the sighting of a man by Officer Donald Fouke walking along Jackson Street was immaterial to this report. Otherwise, the report would have stated "suspect was last seen walking east on Jackson Street" - which it didn't. Here is the full statement on page 2:: "#2 SUSPECT: WMA, in his early forties, 5'8", heavy build, reddish-blond, crew cut hair. wearing eyeglasses, dark brown trousers, dark (navy blue or black) "Parka" jacket, dark shoes. Suspect should have many blood stains on his person and clothing, suspect may also be in possession of the keys to the Yellow Cab, possibly has wallet belonging to the victim. Last seen walking north on Cherry Street, from Washington Street". The only eyewitnesses that could possibly have viewed the suspect to our knowledge, before he exited Cherry Street were the three teenagers. Officer Donald Fouke hadn't even entered the picture yet.
The above description of a white male in his early forties was given by the three teenagers before 6:29 am on the 12th October 1969, dispelling the notion they initially described him as aged between 25 and 30 years. Their description of a man in his early forties actually tallies with Officer Donald Fouke's memorandum submitted one month later, on November 12th 1969. In the memorandum he describes the suspect as a "WMA, 35-45 yrs, about 5'10", 180-200 lbs, medium heavy build, barrel chested, medium complexion, light colored hair possibly graying in rear, crew cut, wearing glasses. Dressed in dark blue waist length zipper type jacket (Navy or royal blue). Elastic cuffs and waist band zipped part way up. Brown wool pants pleated type baggy in rear (Rust brown)". The two descriptions near corroborate one another, totally debunking the conspiracy theories that depend on these two sightings being two different people.
In summary, we have three independent sightings describing the features of the suspect as somebody in his "early forties, with a reddish-blond crewcut", followed by "35-45 years, with light colored hair in a crewcut" and finally "about 40, with a blond crewcut". There is a distinct possibility that the Zodiac Killer had light hair and was aged around 40.
In the 2007 Zodiac documentary he stated "One month later, when the composite drawing came out at Richmond Station and was posted on the wall, he looked similar to the man I had seen on October 11th. I then wrote a scratch, interdepartmental memorandum, to my lieutenant to forward to homicide division, so that they would have the additional information about the appearance of the suspect. I never spoke to Toschi that I personally know of or remember. He may have been the inspector that came out and asked me about the composite drawing and I told them the suspect was older and heavier". Not the words of a man who played any part in the composite drawings released on October 13th and October 18th of 1969. For the life of me, I cannot understand why.