My first thoughts were run away since that is very common in kids 14+. Lots of times the parents are surprized to find out that was what it was. I hope he is ok and was unharmed and it was only something like that that can be resolved.
Yes, he ran away. I'm not certain of the problems he was having at home though. He is going to be moving in with his dad & stepmom. His stepmom says she will share more later but the family needs time to heal and reconcile.