There's actually a great documentary about this called Marwencol that covers a broad swath of material about him, from the incident to initial therapy to the genesis of Marwencol to its evolution and eventually acceptance as a legitimate art piece. All with interviews with tons of people and a lot of shots of the "town". It's streaming on Netflix. I definitely recommend checking it out.
@ King - I recently saw that doc and IT BLEW ME AWAY. Couldn't stop thinking about it for days. Of course, I'm a Toys R Us kid and have always loved G.I. Joe so there's that. But yes, seriously, can't reccommend this film enough. Run, don't walk to see it.
I read the article and the whole thing is amazing. Possibly the most interesting thing to me (well, the whole thing is intensely interesting, but y'know) is the fact that the injuries he sustained "cured" his alcoholism.
I wonder if there are scientists using him as a case study to figure out more about alcoholism and addiction in general.
Going to have to track down the documentary though, the whole story is really amazing.