Ed Kemper has graduated to killing female hitchhikers.  His hate for his mother drives his fantasies.  He has a genius level IQ, and it makes him all the more dangerous.  He is portrayed in the Netflix series Mind Hunter.

De Angelo continues his crime spree of assault and murder, but suddenly stops in the 1980's.  DNA technology and a tenacious Detective eventually catch up to him, though.

Joseph DeAngelo between 1974 to 1986 committed untold atrocities, all while leading a seemingly normal life, as a husband and a small town cop.  Starting out as a peeping Tom, he eventually evolved into a rapist and serial killer.

Wylder continues his path of destruction across the US, even forcing an accomplice to come with him.

Gary Michael Heidnik's plan to capture women and keep them chained in his basement to "breed" them comes full circle.

Gary Michael Heidnik showed many signs of mental illness before his first murder.  At the end, Heidnik kidnapped 6 women, chained them in his basement in Philadelphia, and murdered two of them.