LINDA - 1973 tv movie in which a guy is talking with the wife of someone on the beach as they watch their spouses shooting cans for target practice. Then, when the wife goes to the water--his wife shoots her--and then shoots the victim's husband. The man then runs for the police but when he gets to the crime scene--only the body of the woman is on the beach and his own wife and the man who she had supposedly shot blame him for the murder. He has to turn to a retired lawyer for help (this may have been an inspiration for Hawkins--the show that eventually was remade as Matlock).
THE BLACK PANTHER - 1977 --Obscure thriller about a methodical criminal (reacting with murderous rage when things go wrong) who kidnaps an heiress and locks her in the depths of a drainage pipe. Quite riveting thanks to the lead performance by an actor (Donald Sumpter) who I only recall from a bit part in a Hammer film. Based on a true story so it says.
THE BLACK PANTHER - 1977 --Obscure thriller about a methodical criminal (reacting with murderous rage when things go wrong) who kidnaps an heiress and locks her in the depths of a drainage pipe. Quite riveting thanks to the lead performance by an actor (Donald Sumpter) who I only recall from a bit part in a Hammer film. Based on a true story so it says.