Stefan admits that he did kill Maggie. Through flashbacks we see that Stefan and Maggie met and Maggie recognized him as one of the Salvatore brothers and asked him to tell her where Damon is so she can kill him. Maggie believed that Damon was responsible for Enzo's death in the fire (she did not know that Wes saved him) and she wanted to revenge for his death. In the meantime, Damon asks Liz's (Marguerite MacIntyre) help to find out more about Maggie and her death. Liz, having the date of the murder, finds the file and brings it to Damon and when Damon sees it he remembers that he was the one who killed Maggie. Through another flashback, we see that Maggie did find Damon and attempted to kill him but Damon stopped her and kill her and made it look like it was Stefan. Damon did not know that the woman was Enzo's true love since she did not give him her name. Enzo tortures Stefan and Damon gets there in time before he kills him. Damon confesses to Enzo that he was the one who killed Maggie but he did not know who she was and that at the time he had his emotions turned off so he did many bad things. Stefan asks Damon why he made it look like he did it. Damon says Maggie was the hope Enzo held onto, you were mine and when you didn’t notice I was missing for five years let’s just say I held a grudge. Damon apologizes, and tells Enzo he can kill him and hate him if he wants. Enzo does not want to hate Damon because he is the only thing he has left, so he turned off his emotions so he will not care about anything, something that he does, despite Damon trying to stop him. Enzo attacks Liv and Damon and Stefan try to stop him but he runs away getting Elena with him. Damon asks Stefan to help Liv while he goes after Enzo believing that he can help him. Stefan gives Liv some of his blood to save her life and then runs after Enzo as well. Enzo wants to kill Elena because he knows that Damon loves and cares about her but Elena fights back, so he snaps her neck. Stefan gets there in time to stop him before he stakes