Mindhunter’s version of Ed Kemper, played by Cameron Britton, is very similar to what we know about the real-life serial killer: The show quoted directly from actual interviews conducted with Kemper in prison. Kemper killed his grandparents as a teenager, but was later released from a mental hospital at age 21. From May 1972 to April 1973, he went on to kidnap, murder, and defile eight more people before he finally turned himself over to the police. Kemper is still incarcerated at the California Medical Facility.