Chirss does have issues. Every murderer does. Chriss has a great attorney and will get a fair trial. Chriss did not do this for anything else but $$$$$$$$$$$$$.
Chris, if he hated his parents for whatever reason, could have stopped talking to them, moved away or not, gotten a job, supported himself and never spoken to them again.
Instead, he relied on them for support, housing, clothing, cars, credit card payments, food and everything. He did not want to let go. He just wanted them to let go of the money so he could have whatever he wanted. Was and is he troubled, absolutely, but that started way before he was ever sent away.