Yet another video where Superman kills people for the lols
SPOILER ALERT - this is from Superman: Doomsday. The real Superman is killed in battle by an alien monster. Lex Luthor raises a secret army of Superman clones who he treats like his personal bitches. One of them gets free of his control and starts deciding who shall live and who shall die.
Part 3? Justice League The Animated Series, The episode where Supes is all butthurt at Darkseid, first suggesting they should let his planet be exterminated, then goes berserk and tried to murder Darkseid.