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A Uintah County man who pleaded guilty and mentally ill to shooting and killing his brother during an argument two years ago has been sentenced to prison.

Craig A. Antonio, 29, of Ballard, was charged in 8th District Court with first-degree felony murder for the April 2015 death of 23-year-old Tyson Macartin Antonio.

In December, the defendant — who, according to court records, has been diagnosed with schizophrenia — entered the guilty and mentally ill plea to a reduced third-degree felony count of homicide by assault. The plea followed nearly 18 months of treatment at the Utah State Hospital.

Craig Antonio was sentenced Tuesday to zero to five years in prison by Judge Clark McClellan.

On April 11, 2015, the mother of the two men called 911 after discovering the younger sibling dead at her home near 1400 S. 1500 East, Ballard. An autopsy revealed a bullet wound in his head, and a medical examiner determined it was a homicide.

In an interview with police, Craig Antonio said that he had argued with his brother and shot him in the head with a .22-caliber weapon, according to plea agreement documents.