Besides Doomsday has he ever killed? As a kid I thought DC heroes never killed: reading the New 52 series I notice that characters like Wonder Woman, Hal, and Aquaman kill people. Does/Has Superman? Will he. Canon only.

I don't recall the details because it's older (only heard of 2nd hand), but I do believe he used kryptonite to kill some kryptonian villains. Then after that swore never to again.....or something :D

Also - New52 has turned a lot of things on their head. Pre-52 WW tried to stick to the moral (she was shunned after killing Maxwell Lord).

Yes. This was answered some time ago.

Pocket Universe(Zod, Faora, Quex-Ul)

All those poor poor Parademons...

@kal_smahboi: Do Parademons really count since if he didn't kill them they'd just be going back to Apokalypse

@joshmightbe: Nah, just making a joke. They're not really alive anyway. They're just stolen flesh reshaped into a monster army.

haha this made me laugh :P

Pre-crisis? I read a book that stated the issue number for each quote, but didn't have the money to actually buy it. It listed dozens of people he killed before the late 1950's and the Comics Code Authority. He used his heat vision to blow up a Nazi sub that torpedoed a cruise ship without warning. He strangled a Nazi helicopter pilot with his bare hands. He watched crooks die instead of saving them. For all these - http://www.comicvine.com/superman/4005-1807/forums/golden-age-superman-was-no-boyscout-623752/