I noticed that too, he has a fast b and a slow b, and he was right handed ( if the smudge is his hand)...I think the page with NOTES on the top was two days and the second paper was the third day.
AHA!....i think he was going around and looking at cars on the sheet that says NOTES, that would explain the reccurences and the circling, he was keeping the vehicles separated.....he went to go see a car and got murdered by the owner?? oh yeah i live in SOCAL, so the freeway thing was a longshot....i also believe that this man has Aspergers and Dyslexia....but they balled up his symptoms as Aspergers. One word keeps calling to me .... PSESHLE....take the first three letters PSE change them to SPE and add SHLE SPESHLE....this guy had the basics, mixed with his own different thinking style.
I feel as if someone could talk to his family, this would be so much easier....I did notice how it sounds like his family was never intrigued by this kids home-made language, that he had since he was a kid....i dont think they would disregard this language unless they knew it had any discernable patterns, but once again we dont know his folks.
are there any freeways around st louis that would go along with these numbers? If he is street smart, and the family said that in 1999....maybe is was homeless, but creative at getting what he needs.
I wonder what his influences would have been around 1965...he would have been around 7. I also did catch that he is very detail oriented when it came to correcting his "mistakes".