Michael Jude Montanarella, 32, was shot and killed in Phoenix in the early morning of March 24, 2021. Officers found Montanarella with a gunshot wound near 28th Street and Greenway Parkway at about 5:30 a.m.; he was taken to a hospital and later pronounced deceased.

The shooting followed a long-running dispute between Montanarella and a 40-year-old ex-friend. According to the man who remained at the scene and contacted 911, an argument turned physical and Montanarella — reportedly armed with a knife — continued to approach after the other man drew a gun. Investigators examined the scene and reviewed the accounts; the shooter said he acted in self-defense.

The investigation did not produce immediate charges, and authorities ultimately determined the shooting was justified self-defense. Does anyone have information about the dispute between Montanarella and the other man or about Montanarella’s whereabouts that morning?