The Oklahoma Medical Examiner's Office released its autopsy report on the man killed by Sand Springs police in April.
Donald Allen, 66, died April 11, 2015 when he was shot by a police officer.
Family members told News On 6 Allen was schizophrenic and had quit taking his medication.
4/11/2015: Related Story: Man Shot By Sand Springs Officer Was Schizophrenic, Family Says
The ME's report lists the cause of death as gunshot wounds to the chest and abdomen and the manner of death as homicide. The report says Allen had three gunshot wounds, two in the chest and one in the abdomen.
The report says toxicology tests showed no signs of alcohol or "amphetamine, methamphetamine, fentanyl, cocaine, opiates, PCP, barbiturates, benzodiazepines" in Allen's body.
The department put two officers on administrative leave - the officer closest to the scene when the shooting happened and the officer who fired the shots.
The department identified the officer who shot Allen as Brian Barnett. Department leaders said body camera video proves he had no choice but to open fire.
The district attorney cleared both officers and they both returned to work.