It doesn't have anything to do with the neighborhoods. I think I read that the case is starting to look like a murder-suicide case (women shot him then herself). It seemed like McNair and a friend were going to go comfort her about an issue; he was trying to be a friend. I don't know the whole story, but that's what I understand of it, from the liitle details the press has given us.
At any rate, Steve McNair will be missed. He was an incredible athlete, player, and person. As a fan of both the Titans and Ravens, I'm deeply saddened.
Rest in Peace