What's the name of this book and who wrote it?

Question

This one boy is like kidnapped and he thinks its his real father and he raped the kid or something. and he kidnaps other kids too. so he reads this old newspaper about a boy that went missing and he decides to take up his identity to escape from his father. but at the end it turns out it really was him he just suppressed it.

Answer 1

Counterfeit Son by Elaine Marie Alphin