A sick murderer who killed four women has finally been unmasked more than 40 years after his death.
DNA evidence from the remains of Joe Ervin, who took his own life in prison in 1981, murdered Dolores Barajas, 53; Madeleine Furey-Livaudais, 33; Gwendolyn Harris, 27; and Antoinette Parks, 17.
All were killed between 1978 and 1981 in and around Denver, Colorado, but it wasn't until 2018 that they were all connected by investigators.
