Homicide detectives and other agencies arrested five men on Thursday - Lydell Herd, 31; Robert Thomas, 28; Richard Cowley, 24; Larry Johnson, 27; and Deshawn Peterson, 18. All are from Los Angeles except Peterson, who is from Lancaster.
The suspects were accused of trying to help Trenton Lovell, 27, evade arrest after he shot Owen, a 29-year department veteran, who was responding to a burglary report in Lancaster.
After shooting Owen, Lovell pumped four more bullets into the sergeant's body as he lay on the ground, authorities said.
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Authorities declined to detail the specific allegations against the five suspects. The sheriff's department said only that the arrests happened after detectives developed information that the five had "attempted to help" Lovell evade arrest following the Oct. 6 shooting.
They said that text messages and phone messages prove there was a plot to help Lovell get away. Capt. Steve Katz said Lovell was looking to get away from the containment area after the shooting.
"The fact that these individuals would now think to aid, or assist, or help in any way simply makes them a part of that act," he said.
After Owen was shot, Lovell stole the sergeant's patrol car, rammed another police vehicle and then held two teens hostage in a home before he was captured.
Lovell was shot in the shoulder by a sheriff's deputy during the incident.
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The arrest charges for the five suspects will be brought to the Los Angeles County District Attorney's office for filing consideration. Investigators said they will most likely face aiding and abetting charges.
Detectives were also led to weapons and narcotics following the arrests, which could result in more charges against the men.
As for Lovell, he remains incarcerated at Men's Central Jail. He was arraigned for Owen's murder on Jan. 9, and he has a preliminary hearing set for Feb. 15.
The investigation is ongoing. If you have any further information about this incident, you're urged to contact the Los Angeles County Sheriff's Department's Homicide Bureau at (323) 890-5500.