A reputed Pomona gang boss who authorities say held rare clout inside Southern California lockups was set to find out Thursday whether he will spend the rest of his life in federal prison.
Michael Lerma, a 69-year-old alleged Mexican Mafia member from Pomona, was due to be sentenced Thursday, March 12, 2026, in federal court in downtown Los Angeles after a jury convicted him and three Pomona-area associates of murder and racketeering. Prosecutors say Lerma ordered the June 2020 killing of an inmate inside the Metropolitan Detention Center in DTLA as payback for an unpaid heroin debt, and the March 2025 verdicts capped a multi-year probe into a prison-based drug and extortion enterprise.
According to a press release from the U.S. Attorney's Office for the Central District of California, a federal jury found Lerma and three others guilty in March 2025 of conspiracy to violate the Racketeer Influenced and Corrupt Organizations Act, violent crimes in aid of racketeering (VICAR), murder, and first-degree murder for the in-custody killing at MDC Los Angeles. The release also notes that co-defendants were found guilty of related drug-distribution and firearms charges tied to the broader racketeering case.
Prosecutors and witnesses at trial described Lerma as a long-running shot-caller who collected extortion payments, or "taxes," from Pomona drug dealers and directed a network that reached into Calipatria State Prison and the MDC’s Six North unit. From there, according to reporting and court records presented at trial, he and his associates supervised drug sales and enforced debts, using a mix of street crews and incarcerated enforcers to handle collections and punishments.
How prosecutors say the killing unfolded
Witnesses testified that the inmate identified in court papers as "S.B." was lured into a cell on June 28, 2020, and killed by three Pomona men acting on Lerma’s orders. During closing arguments, prosecutors told jurors, "If Michael Lerma wills it, you will die," a line they used to underscore how authorities say his word carried lethal weight inside the jail.
Sentencing and next steps
Local reporting states that Lerma was scheduled for sentencing on Thursday, March 12, 2026, with the hearing set in downtown federal court. That appearance is expected to determine whether the convictions result in the life terms that federal statutes allow for the crimes on which he and his co-defendants were found guilty.
Federal penalties and the broader probe
The U.S. Attorney's Office has said U.S. District Judge George H. Wu will schedule sentencing hearings and that each defendant faces a mandatory sentence of life in federal prison under the statutes linked to the convictions. Federal prosecutors have already secured at least 16 related convictions in the sprawling investigation into extortion, drug trafficking, and violence tied to Lerma’s network, a result officials have credited to a multi-agency effort.
What it means for Pomona and L.A.
The trial laid out how, in the government’s telling, prison-run operations can push violence and financial pressure back onto neighborhood streets, siphoning drug proceeds and enforcing debts across city lines. Hoodline previously broke down the March 2025 verdicts in detail, Pomona gang members convicted, and local outlets reported that the probe was led by the FBI’s San Gabriel Valley Safe Streets Task Force, along with the Pomona Police Department and other agencies.
Sentencing hearings are expected to spotlight how federal investigators are trying to dismantle prison-directed criminal enterprises that stretch across neighborhoods and jail units, and whether life terms in federal custody will mark a definitive end to the crew that prosecutors say operated from Pomona into Los Angeles jails.
Sources: according to the U.S. Attorney's Office, Central District of California, as reported by the Los Angeles Times, and according to MyNewsLA. Additional local coverage: CBS Los Angeles and FOX 11 Los Angeles.
