The thing that was never mentioned in most of the coverage about Treadwell's girlfriend, where his hubris may have gotten her killed. She may have been inside of her menstruation cycle. He could not stop nature from taking it's course in that case without a gun.
Some guides and hunters voiced that as the probably reason for the attack after all of Treadwell's solo years with the grizzlies. She was the only change in his relationship with the bears. I believe in Alaska where going into areas of high bear population is concerned, the guides want to know if any women in their party is in her menstruation cycle. Blood is a grizzly dinner bell.
I don't know if he was a scumbag. He carried his hubris like giant clanging balls between his legs until the end. He mislead his girlfriend into believing she was safe as long as she was with him. More likely mutual stupidity and the other shoe finally dropped on him. At least he was not guiding groups to play with the grizzlies.