Los Angeles police have arrested four people over the fatal shooting of former General Hospital actor Johnny Wactor.
Robert Barceleau, Leonel Gutierrez and Sergio Estrada, all 18, were booked on arrest warrants for murder.
Frank Olano, 22, was booked for being an alleged accessory to the crime.
They were being held in lieu of $US2 million ($A3 million) bail.
Officers conducted search warrants at several locations throughout Los Angeles that led to the arrests on Thursday morning, according to a news release from the Los Angeles Police Department.
Officers also recovered additional evidence during the searches, police said.
Wactor was shot and killed when he interrupted thieves stealing the catalytic converter from his car in the early morning of May 25.
The 37-year-old had left work at a rooftop bar with a co-worker when he saw three men who had hoisted his car, police said.
One of them fired at him without provocation and killed him, they said.
Police said the men fled in a car and Wactor was taken to hospital, where he was later declared dead.
Authorities on August 5 asked for the public’s help in identifying the suspects, releasing surveillance images of them and their getaway car.
Wactor portrayed Brando Corbin on the ABC soap opera General Hospital from 2020 to 2022.
He also appeared in a variety of films and TV series, including Station 19, NCIS and Westworld, as well as in the video game Call Of Duty: Vanguard.
At a news conference earlier in the week, his mother described the feeling of losing him.
“Grief is my constant companion,” Scarlett Wactor said.
“I can’t wish him happy birthday on August 31 – he would have been 38.
“I can’t ask if he’s coming home for Christmas. I can’t ask how his day went.”