If one or both of those boys took the bike and put it in the house without a really good reason, they are toast. I have a bad feeling Autumn either knew these boys and went into that abandoned house with them, feeling she could trust them or she came across them by accident and was snatched off the street. Maybe they tried to get her to do something she didn't want to and they killed her to keep her quiet.
So scary to think about her being in that situation.
So scary to think about her being in that situation.