Seriously though, once someone has died. I mean, after a certain amont of time, how is it possiable for somone to come back from the dead? Just doesn't seem real, maybe in some made up world called IA.
There have been countless incidences where people have been mis-pronounced as dead only to just be in such a state of shock or comatose, that they are awakened by the knife that cuts into them. Later, QD/