Here you go Foreigner-
"Baker told Blumenfeld that the killer was most likely not a homosexual but that he was unquestionably paranoid and schizophrenic. The analyst then contradicted the opinion of many others who believed that the Zodiac’s childish scrawl and rampant misspellings were evidence that the writer was an uneducated man. Baker viewed the letters as proof that the killer was actually a shrewd and methodical planner attempting to mislead authorities"
Found here- http://www.zodiackillerfacts.com/PsychPortraits.htm
A guy that claims he is a psychiatrist speaks his mind here - http://zodiackillersolved.blogspot.com/ ... iller.html
Also, there are some profilers that think Zodiac suffered from 'IMPULSE schizophrenia' here's one example-
https://books.google.com/books?id=SuEUR ... ic&f=false
And here's a Professional mentioned in Graysmith's Book

