MOSCOW, Idaho -

A man was shot and killed at a Moscow trailer park on Sunday afternoon. The shooter was arrested on 1st Degree Murder charges.

The Moscow Police Department and the Latah County Sheriff's Office responded to a 911 call from a woman who said her husband had been shot and was inside a trailer with the shooter's estranged girlfriend.

Officers arrived at the Bel Air Mobile Home Park at 1751 North Polk Extension. They found the shooter, Nathaniel H. Nisbet, 28, waiting on the deck outside of the trailer in question. He was taken into custody without incident.

The victim, Charles Patrick McMichael, 42, was found inside the trailer with multiple gunshot wounds to the chest. Immediate lifesaving care was administered before he was transported to Gritman Medical Center. McMichael died from his injuries at Gritman.

Initial information suggests that McMichael was helping Nisbet's estranged girlfriend change the locks to her trailer. When McMichael, his wife, and Nisbet's estranged girlfriend arrived at the trailer they found the door locked. After unlocking the door, they discovered it barricaded. McMichael was able to force the door open and enter the trailer. McMichael discovered Nisbet and a disturbance ensued, followed by shots fired.

Nisbet was transported to the police station and invoked his rights after a short statement. He was arrested for 1st Degree Murder and booked into the Latah County Jail.