I think anyone who has to hide who they really are, are one of two people. The first is not a good person as they attempt to change who they are to get away from authorities so that they can continue to crimes. The other is usually someone in danger from others and needs to have a new identity to live in peace and away from bad people. This is at times people in witness protection or situations similar.
It sounds like this guy just wanted to get out of a bad situation with a family who wanted him to be someone that he wasn't. That is too bad. Everyone loses in this situation.