I'm going to knock off a rastafarian mans hat after he stole PS5000 off my dad.
Why did he rob your dad?
My dad's an idiot and an easy mark for conmen.
It's understandable to want to stick up for family, I'd want to protect my father too.
It's not you.
Sticking up for your dad is a noble thing to do. But, I think it would be better if you contacted the authorities and let them handle this situation. Then your dad would get his money back and the man would be prevented from conning someone else.