I have a strongly feminist, pro-abort, leftwing sister. She is absolutely kneejerk, pro-death in virtually every situation where there is a choice to be made. I have come to believe that She actually gets off on it only not quite so obviously as Felos does. It is creepy and I can't explain the origin of it except to say that for a person who supposedly cares for others, my sister carries around an odd amount of generalized hostility.
From others I have seen, I really don't think my sister is all that unusual. Plenty of lefties wanted Terri to die, believe me.