Unless they want to die, put them away until they can no longer act on their impulses, are no longer a threat to anyone, (forever?) and the victims are able to move on with their lives. Maybe I'm just a lib-tard but there may be some wisdom in the whole "thou shall not kill" thing.

Viewing human lives as disposable just holds us back. It encourages us to make too many humans and to not take care of the ones we have.