Let’s see if I got this right. He gets into an argument with his daughter where he says he doesn’t care if Donald Trump were to rape her because he has two more daughters. There is obviously no coming back from thinking let alone saying such a thing.

The next day he downs.a bottle of wine, invites his daughter to his room right before she leaves back to England. In the room she says she wants to see his handgun. As he pulls it out of the drawer it just happens to go off and just happens to be aimed right at her

Yeah, dude couldn’t let her live after what he had told her, it is pretty obvious. He tricks her to coming into his room where there is no witness and silences her forever.