My friend is fine. His hand was bitten so he had to get a rabies shot, and he said he got his knee and shoulder bruised somehow. He's still very angry especially since he owns two weiner dogs just like the one the pitbull killed. He's gonna start carrying a maglight with him when he walks his puppies now.
This happened in Las Vegas so I'm not sure what their laws are when it comes to animal control, but part of me hopes they put down both the dog and the owner.
He hasn't posted about it since yesterday, but when he does, I'll update here.
Edit: Friend just IMed and said the dachsund's owner is going to file a claim with pitbull's owner's insurance company. He is undecided if he's gonna do the same.