Mike Sebastian Cortez-Marquez, 19, of Redondo Beach was shot and killed on June 16, 2016, at the intersection of Inglewood and Marine avenues near the Lawndale boundary. He and a friend had stopped at a gas station about 4 p.m. and encountered another 19-year-old, Erik Martinez. An argument escalated into a physical fight in the crosswalk and Martinez drew a gun, firing at both young men. Cortez-Marquez was pronounced dead at the scene at 4:07 p.m.; his friend survived after being taken to hospital.

Investigators tied the parties to rival Lawndale gangs. No weapons were found on Cortez-Marquez or his friend. Martinez was arrested the next day in Long Beach and charged with murder and attempted murder, with special allegations for using a handgun and committing the offenses in association with a criminal street gang; a gun not registered to Martinez was recovered at arrest and being examined. The Redondo Beach Police asked the public for help with information.

If anyone knew Mike, his movements that afternoon, or saw anything at the intersection, please share what is known.