OMAHA, Neb. (AP) — A judge has ruled that a man convicted of killing four people in Omaha is not mentally fit enough to go through sentencing in the case.

Douglas County District Judge Peter Bataillon (buh-TAL’-yuhn) ruled Friday in the case of 27-year-old Nikko Jenkins. Jenkins has been awaiting sentencing for the August 2013 shotgun deaths of Curtis Bradford, Jorge Cajiga-Ruiz, Juan Uribe-Pena and Andrea Kruger in separate attacks.

The judge’s ruling was based on testimony from psychiatrists in a hearing earlier this month. A defense psychiatrist testified that Jenkins suffers schizophrenia and perhaps a bipolar disorder. A prosecution psychiatrist said Jenkins acts out and is lying about his mental state.

Another hearing has been set for July 29 to discuss a plan to restore Jenkins’ mental competency.