Susan Monica (born Steven Buchanan; July 8, 1948) is an American convicted murderer. She garnered public attention after being convicted of murdering two men at her residence in rural Wimer, Oregon. Both of the victims had worked as handymen on her farm, and each had gone missing under mysterious circumstances in 2012 and 2013, respectively. In both cases, Monica dismembered the victims before feeding portions of their remains to her farm pigs. Partial remains of the two men were discovered at her residence after authorities interrogated her for identity theft of one of the men.