NORTH LAS VEGAS, Nev. (AP) — Officials have identified two men who were killed in separate but related shootings at the same North Las Vegas address.

The Las Vegas Review-Journal reports Hasan Ameen was killed early Friday in a triple shooting that also injured a 13-year-old boy and a 20-year-old man. A neighbor found Richard Brown Jr. dead the next morning inside the same unit where Ameen was shot.

The Clark County coroner's office says both men died of gunshot wounds to the head and their deaths have been ruled homicides.

North Las Vegas police spokesman Aaron Patty says detectives believe one suspect was responsible for Brown's slaying, but it wasn't clear if that person also was responsible for the triple shooting a day earlier.

The department is investigating whether Saturday's slaying was in retaliation for the prior shooting.

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Information from: Las Vegas Review-Journal, http://www.lvrj.com