He treats everyone like objects, even sephiroth.
He caused countless pain and suffering, like the scene of aeris/aerith and red XIII.
He was using zach as a vr test subject.
He might have killed krast.Atm i don't know if he did or not.
He used his wife and child as a test subject,causing his wife to die.
He tried to destroy the world.
He used countless soldiers as guinea pigs in the mako reactors.
This guy is big time evil.He has commited countless atrocities.