I don't think anyone is suggesting they know what he did, rather speculating based on the information we have. It's very possible that initially he confessed, as was reported following his arrest, and after speaking to a lawyer and his dad he changed his story. I'm not sure if they are basing the charges on the the original confession or not, but they must have enough reason to believe he is responsible for the death of all three. If it was a mistake that he confessed to all three, then it should probably be removed from the beginning of the thread. I would say it's an important detail to leave on here if there is any chance it wasn't true. For now that's what I'm going with. Jmo