Man Gets Life Without Parole For Execution-Style Killing Of Los Angeles County Sheriff's Deputy KEY POINTS Sgt. Steve Owen was killed on Oct. 5, 2016 Lovell had pleaded guilty in April A California man who pleaded guilty to the execution-style killing of a Los Angeles County sheriff's deputy in 2016 has been sentenced to life in prison. Trenton Lovell, 31, was sentenced to prison Monday without the possibility of parole for killing Sgt. Steve Owen. The 53-year-old man was shot five times while responding to a burglary call in Lancaster on Oct. 5, 2016. Lovell, who had nearly a dozen previous arrests and two prior convictions for robbery, was out on parole at the time. Sgt. Owen confronted Lovell at gunpoint and alerted fellow officers.