Oh, I know - I gather he was an alcoholic already at the time of his beating - isn't that why he initially ran from the police - he'd been drinking, when he wasn't supposed to be, under the terms of his parole?
Alcohol/drugs would have probably done him in whether that, and its entire aftermath, had happened or not. But I think becoming a symbol is an uncomfortable way to have to live one's life. And he seemed to be a basically good hearted guy.