Authorities have made multiple arrests in connection to the shooting death of Johnny Wactor . The Los Angeles Police Department took four people into custody Aug. 15 as part of the investigation into the General Hospital actor’s homicide, according to a news release.

Robert Barceleau , 18, Leonel Gutierrez , 18, and Sergio Estrada , 18, were booked on arrest warrants for murder, while 22-year-old Frank Olano was booked on a warrant for accessory after the fact, per police. E! News was unable to determine if the four had obtained lawyers to speak on their behalf. Wactor was shot and killed May 25 in downtown L.

A. after discovering thieves tampering with a car, his mother told NBC Los Angeles at the time. Officers responded to a report of a shooting at 3:25 a.

m. to find Wactor suffering from an apparent gunshot wound, per an LAPD press release. The soap star was taken to a local hospital, where he was pronounced dead.

"Based on witness statements, Wactor had ended his shift as a bartender at a local bar and walked to his vehicle," read a May 28 press release from the LAPD. "When Wactor arrived at his vehicle, he was confronted by three individuals who had Wactor’s vehicle raised up with a floor jack and were in the process of stealing the catalytic converter. Without provocation, the victim was shot by one of the individuals.

" Police said the three suspects fled the scene in a dark sedan. Wactor’s coworker Anita Joy later detailed the 37-year-old’s heroic final moments .