A man shot and killed Saturday night in north Minneapolis has been identified as a 29-year-old who lives a block over from the house where he was found.

Robert Montrele Mathis died of a gunshot wound to the head, the Hennepin County medical examiner's office said Wednesday.

Mathis was found about 8 p.m. Saturday in a house on the 3300 block of Logan Avenue N. Charged with second-degree murder in the shooting is Everett Williams Jr., 26.

Police have said Williams and Mathis knew each other, according to the criminal complaint, which also said that numerous witnesses told authorities the two were arguing before the shooting.

The complaint gave this account of what happened:

Mathis was trying to leave Williams' house with a woman before the shooting. When police arrived, they found Williams, a shotgun in the kitchen and a discharged casing. A woman was trying to help Mathis, who was wounded, the complaint added.

Williams was on probation from a March 2013 conviction in Hennepin County for second-degree assault.

Vince Tuss

Staff writer Paul Walsh contributed to this report.