SO, mouldy Voldy also killed Muggles, because he thought he was superior. He was basically a Wizarding World Hitler.
....Tho tru, Grindelwald seems badass from the things I've heard of him.
grindlewald; voldermort; he killed a innocent animal and bewitched to make it bow to him so he can become the leader of the sorcerors; i onli kiled harrys parants