Plot:Destroy NPC
From OHRRPGCE-Wiki
destroy NPC (reference)
This command will erase the specified NPC. You can use either an NPC reference or the NPC's ID number. The deletion is not permanent. Unless this is an NPC that you created with create NPC, the NPC will be back again next time the map gets loaded. If you need to permanently remove an NPC, use tags.
This only deletes the one NPC you specify. If you use an NPC ID number as the argument, only the first copy of the NPC on the map will be deleted
