Magnum, P.I. (1980)

When an ex-surfing champion, who was a friend of Magnum, Rick, and T.C.'s, is found dead on the beach, Magnum becomes concerned that the Police are not treating the case importantly enough and investigates the suspicious death for himself. During the course of his investigations, a local small-time drug supplier and an emotionally disturbed Vietnam veteran both stand out as prime suspects, but Thomas suspects that the culprit is someone else...