Murder, She Wrote (1984)

S4E16 Murder Through the Looking Glass

Jessica finds herself in deep trouble after catching the final words of a hitman. As she delves into the murder of Adam Cosgrove, she realizes that no one is willing to acknowledge his disappearance, much less his death. Teaming up with a gruff police sergeant and a priest who has a hidden agenda, Jessica unravels the truth: the victim was overseeing a classified government operation to safeguard a foreign diplomat, and there's a traitor among those at the safehouse.