Robert Garcia died six years ago Thursday after being shot multiple times at a tow yard where he worked in the 13500 block of Norwalk Boulevard.
Surveillance video from that night shows three young suspects chasing Garcia around the tow yard.
"We would appreciate it if you would just bring us some closure to our hearts," Garcia's father, Lloyd, said, addressing his son's killers.
Anyone with information regarding the incident is encouraged to contact the L.A. County Sheriff's Department.