It says in the first episodes she burned in a church, like in the scene that Stefan and Damon were talking about it in the football field at night. But, it showed another scene of Katherine getting chained up and taken away in a horse carriage. Like, she had a muzzle on her mouth and then Stefan and Damon were both shot when they tried to save her, and then they turned into Vampires. How did the story really go, and how did Katherine actually die?