A confrontation on the evening of March 16, 2026 in Fallbrook, California left 40-year-old Martin Lucas Esteban dead. Deputies were called to the 3800 block of E. Mission Road around 8 p.m. for an assault with a deadly weapon. They found two men with traumatic injuries; Lucas died at the scene from a gunshot wound. The other man was also shot and taken to hospital with injuries that were expected to be nonfatal.

The San Diego County Sheriff’s Homicide Unit identified and arrested 70-year-old Michael Anthony Burke of Fallbrook. Burke was booked into Vista Detention Facility and charged with one count of murder and one count of attempted murder. He pleaded not guilty during his initial court appearance and is being held without bail. Authorities described the incident as isolated.

If anyone witnessed the argument in or near the vehicle that preceded the shooting, or has information about what happened that night, please come forward.