OMFG! I can't believe she died like that and that you ended it like that! Poor Gerard, and the guys too. They are really gonna go downhill especially Gerard.
Is the killer her mother? I kinda thought that because she was always saying stuff about her being a slut and you know 'living on your knees' implies the whole 'you are a slut' but it's just my guess.
Anyway I loved this story and I thought it was great. I'm not sure whether it would be best to do a sequel or a one shot because it is most likely that your sequel they will just be dwelling on how Skyler died and like the other guys life ahead (yet, you may not write it that way but I‘m just saying…) and I think it would be best to leave it at the point where they are now, Gerard as a widower and Mikey just about to get married ect because if you carried it on it could really ruin it but yet again this is just my opinion = ].
Great end. Great story. Great Author.