Yes it does. Propkill is logged in most cases unless something wierd happens.
I usually only get messages saying "x was crushed by something" or the generic messages like that after round, with no one having penalties to karma(without actually killing a innocent)
I could be mistaken about the karma logging, but the names arent logged in the cases i've seen unless its a explosive barrel(in which case it usually only says "exploded by something" anyway)