Thing_Remove — removes an actor from the map.
Thing_Remove (tid);
Thing_Remove ( tid // Thing ID of the thing(s) to remove );
This special's function is the same whether you activate it on a line or use it in a script.
When you remove an actor from the map with this special, it is silently and completely removed from the map. It does not leave any trace of itself behind, as it would if it had died. If you simply want to kill a monster, use Thing_Destroy instead.
For reasons that should be obvious, you must not use Thing_Remove to remove a player.
Remove everything with the TID 66:
Thing_Remove (66);
Hexen