Marco Antonio Perez, 30, was killed in San Diego on February 27, 2010, in an incident authorities link to gang-related violence tied to drug trafficking and cross-border criminal rivalries. His death is described as one of several homicides that formed part of a broader pattern of violent crime affecting the city at that time.

Investigators tied Perez’s killing to ongoing conflicts involving criminal organizations that operated across the U.S.-Mexico border. Federal and local agencies, including the FBI, responded with extensive inquiries and targeted operations such as Operation Luz Verde aimed at organized crime figures alleged to be responsible for murders, drug trafficking and firearms offenses in the San Diego area.