I think if you want to go strictly by the movies, its not really spelled out, but from Jedi, we can assume that he died, since he didnt fly/crawl/jump/any other action out of the pit.

If you take anything else into consideration as canon, then you have to evaluate all thats available there. According to a lot of posters, in the EU he lives. So if you consider that canon, there you go.
If not, you are back where I started. With only the movies to go on, you have to make the decision for yourself.