My theory for the moment is that Bella stole the Colt in order to use it. There's somebody (or something she wants to blow away, some personal vendetta that has nothing to do with the demon war. And as long as that vendetta doesn't involve her suddenly revealing a hidden heart of gold, I think it can make for kick-ass storyline.

Oh, and in TV-land, no one is dead until we've seen a body! So I'm still holding out for Henriksen reappearing at a crucial future moment, driving a bitchin' car full of guns and speaking Latin. *falls over ded from teh hot*