LAS VEGAS — It initially sounded like horrific fatal road rage: A Las Vegas mother of four who just finished giving her 15-year-old daughter a driving lesson followed by a driver they encountered on their way home, shot to death in front of their house.

But a police report released Friday gave a more detailed account of the late Feb. 12 incident, and raised new questions about whether the slaying of 44-year-old Tammy Meyers was truly a case of road rage or a neighborhood dispute that spiraled out of control.

The suspected gunman turned out to be a 19-year-old, who lived less than a block away and attended a nearby high school with two of Tammy Meyers’ sons in 2011-2012.

Meyers’ husband, Robert Meyers, said his wife even tried to counsel Eric Milton Nowsch Jr. after his father committed suicide five years ago.

Nowsch wasn’t driving, and didn’t tell his friends he was angry about a traffic encounter. He said he thought someone was after him, according to the police report.

It wasn’t immediately clear how authorities came to suspect Nowsch in the shooting, but the police report said he was questioned Tuesday, five days after the shooting and three days after Tammy Meyers was taken off life support.

Nowsch was being held at the time in juvenile custody on unspecified unrelated charges.

Police said Nowsch told his friends after the shooting that he was a passenger in a silver Audi and saw a gun waved at him from a green car in a middle school parking lot and thought the occupants were after him.

The police report doesn’t name the driver of the silver Audi. But authorities have said they are looking for another suspect.

Two friends said that Nowsch came to their apartment about 3:30 a.m. and told them that he had been involved in a shooting — unloading several shot at one location, and 22 shots in a second fusillade, according to the police report.

Police reported finding six .45-caliber bullet casings at the first shooting location, and eight in the cul-de-sac near the Meyers home. They also reported finding three 9 mm casings in the cul-de-sac.

Nowsch told his friends he thought the people in the car in the school parking lot were looking at him, and said he called a friend with the silver Audi to come and pick him up, according to the report.

Nowsch remained jailed Friday pending an initial court appearance Monday on suspicion of murder, attempted murder and firing a gun from a vehicle.