Magnum, P.I. (1980)

Ron Pennington, a friend of T.C.'s and Magnum's on their basketball team, is shot dead when interrupting an armed grocery store hold-up. T.C., waiting outside for his friend, gets a fleeting look at the robbers as they make their getaway. T.C. tries to mend the rift in Ron's family between Ron and his wayward teenage son that had emerged before Ron's death, as he and Thomas search for the robbers who they assume were responsible for their friend's murder...