That all is not lost in the redemption of psychopathic killers. It appears that they suddenly develop empathy at the very moment they are ending your life by strangling, poisoning or gutting you like a fish. They show this empathy by hugging you, and soothing you with ‘ssshhh’s’ or quiet, kind words, as you die as a result of their ministrations.
Case in point : Just about every serial killer I have seen on tv recently. But, if you want a specific example, the killer in The Returned (French version)