Sergio Sanchez, 35, of Los Angeles was shot and killed while driving on the 210 Freeway near Sylmar on March 14, 2014. His body was found slumped in his car on an off-ramp; he was taken to a hospital and pronounced dead. Bullet impacts and glass fragments indicated the shooter fired at Sanchez from the side of his vehicle, and investigators initially suggested road rage as a possible motive.

Sanchez’s killing was later linked to a series of random drive-by shootings in the San Fernando Valley. Authorities identified 34-year-old Alexander Hernandez of Sylmar as the prime suspect and charged him in connection with multiple shootings; prosecutors say the string of attacks began with Sergio Sanchez. Hernandez had prior convictions for drug offenses and for possessing a firearm as a felon, and he had a history of violent incidents reported by others.

What details about that March 14 stop or the shooter’s vehicle might help piece together what happened to Sergio Sanchez?