If you aren't a Star Wars fan this will make 0 sense to you but it might be a little more funny if I type what he actually says:
I killed them. I killed them all. They're dead. Every single one of them. And not just the men, but the women and children too. They're like animals. And I slaughtered them like animals! I HATE THEM.
(kinda disturbing when you think about it too hard sorry)