If Benoit did kill his family it will not make me lose respect for him as a wrestler. But I don't want to believe he would go down that path at all.
It doesn't add up at all. Lance Storm, Christian, Jeff Jarrett, Arn Anderson, Flair, Triple H, Edge, Malenko, Jericho, JBL, Stephanie, Bret Hart, and Cena all knew the man personally. Yes, he may've been private and may've not had a lot of friends. But if there was something odd about him that didn't seem right I'm sure SOMEONE would've said something.
I don't care how quiet or private a person is, there is always someone who is close to that person and could tell you everything about him/her.