"You draw that line, tell yourself you're not going to pass that, and the next thing, you do," McGee said. "Then you keep going and going. Before I know it, I'm sticking needles in my body, doing heroin and meth every day."
Addiction, mental illness complicate help for the homeless →
"I had to make multiple attempts at doing this," he said. "It can be done. You have to work for it."