ESPN is reporting that he was leaving Kenyon martin's birthday party.
http://sports.espn.go.com/nfl/news/story?id=2716385
Really really sad that it happened. My heart goes out of Williams' family and the rest of the Broncos. Apparently Javon Walker was also in the limo with Williams, and when he showed up to the Bronco's facility, he had some blood on his shirt.