OMAHA, Neb. (AP) — A man has pleaded no contest to second-degree murder and a weapons count in the shooting death of a motorist in an Omaha road-rage incident.

Darwin Johnson pleaded no contest Thursday in the October death of 32-year-old Cristian Pastrana-Marin.

Johnson faces 21 years to life in prison when he is sentenced in August.

Police say Pastrana-Marin and Johnson’s 18-year-old girlfriend got into a dispute in which Pastrana-Marin honked at her after one car cut off the other on U.S. Highway 75 near downtown Omaha.

At a red light, Johnson got out of Green’s vehicle and fired seven times at Pastrana-Marin, hitting him once in the head. Pastrana-Marin died seven days later.