Hi, you brought up several good points I wanted to address, so the above is snipped, bolded and numbered by me to make it easier to answer.
1. They said "we are not calling him a suspect at this time." They also said they are not ruling anyone out. I assume that includes that last person seen with him.
2. I've always been told and lived by "the best predictor of future behaviour is past behaviour" Some people do change, (but most do not) and it's quite obvious when they have. I think if he had changed, we would have seen a different side to this man. (imo)
3. There really is a way that the innocent act and react. I don't have to lose a child to know when something is wrong with someone's reaction.
4. I saw him once at the vigil (that he showed up late for) and once on the uncut video.
Are there others I'm missing?
All of the above is just my own ramblings and opinions.