i think its Lights sister

Yeah, Misa kinda killed herself xD its just a Kira follower. I do like her though, whoever she is.

I heard that in the last volume Near says that Misa is in the hotel so I think it is her because in the manga it looks like her

well, lots of ppl thought it was misa (well, I read the spoilers ^^; so, maybe that doesn't include me) *spoiler!!* but she is just a follower of Kira, Misa commited suicide, as u can see she was standing on a tall building. SHe jumped down, but it wasnt shown, anyways, good work on the girl, looks nice ^^