EVENT KILLIT
EVENT_KILLIT is a Game Event.
This event is fired when an actor is about to be killed by the killit command or by the game.
Set gamevar RETURN 0 to let the actor die.
Set gamevar RETURN to any non-zero value to let the actor live.
Note: by default the game kills actors but it's advisable to set a value to RETURN explicitly before exiting the event. Otherwise the RETURN may be changed during processing the event because some commands change this gamevar.