Gone But Not Forgotten begins with a mysterious man being escorted from the airport to a hotel suite as several workers comment that it must be Stanley Troy, a reclusive tycoon who heads up a conglomerate. Later, an embittered man, Ben Mular (Ramon Bieri), is released from prison and escorted to the hotel suite in the same manner. Only moments after entering the room, Mular reemerges announcing that Troy is dead with a letter opener buried in his chest. Quincy (Jack Klugman) is called to the scene of what appears to be an open and shut case as Mular was the only visitor logged into the room by security and he and the victim had a turbulent history. However, when he conducts the autopsy there are several unexplained findings which lead him to believe this is not such a simple case after all and further investigation is warranted despite internal and external pressure to complete his report.
I found this to be a fairly good Season 3 murder mystery episode despite being pretty far-fetched. The investigation uncovers an epic conspiracy which was planned out over several years and involves many players, but I suppose this type of plot could be plausible given the power and resources available to the people running the conglomerate. The guest stars give solid, convincing performances and we see Joan Van Ark of Knots Landing fame appear as a reporter who assists Quincy in more ways than he expected.
Overall an entertaining and worthwhile episode as long as you watch it in the right frame of mind.