Villains who have committed the unlawful crime of homicide. Unlike Serial Killers, these Murderers and Killers don't necessarily have to kill more than once, though many do, although sometimes one victim can be an even bigger crime or loss in the story than multiple deaths if the victim was a beloved character.

NOTE: villains who have attempted murder and failed are not to be counted for. Please save that for Abusers and Homicidal.

Also, if a villain qualifies as a serial killer (with a distinct pattern and method), they DON'T need to also be categorized as a murderer.