I found a documentary that was based on a guy from my hometown that I knew slightly. I couldn't believe a film had been made about this guy but after seeing it, it blew me away to find out how rough this guy really had it.
The documentary is called "Stevie", written and directed by Steve James in 2003.
"When director Steve James (Hoop Dreams) attended Southern Illinois University, he became Stevie Fielding's Advocate Big Brother. Stevie was a demanding, hyperactive child living a heartbreaking life. When James relocated to Chicago to begin a film career in 1985, he ended his formal duties to Stevie. Ten years later, James again visits Stevie (now in his mid-twenties) and finds out what happened to him in the interim. Not a pretty story."