(AP) — A competency hearing is scheduled to be held Friday for a former doctor accused of killing four people with ties to an Omaha medical school program from which he was fired in 2001.

The hearing for Anthony Garcia, of Terre Haute, Indiana, comes after he spent three months undergoing psychological evaluation at the Lincoln Regional Center. His attorneys asked for the evaluation in February after becoming concerned about his mental state.

Garcia is charged with first-degree murder in the 2008 deaths of the 11-year-old son of Creighton University pathologist William Hunter and the family’s housekeeper, as well as the deaths last May of Creighton pathologist Roger Brumback and his wife.

Authorities say Garcia was motivated by revenge for being fired in 2001. He has pleaded not guilty.