From ZDoom Wiki
Makes the actor non-solid and spawns all drop items. The drop item list is not cleared so it can be executed multiple times. Alternatively you can use A_Fall which is Doom's original name for this function.
Death: CPOS H 5 CPOS I 5 A_Scream CPOS J 5 A_NoBlocking CPOS KLM 5 CPOS N -1 stop