Perhaps it won’t surprise you to learn that Holt McCallany, the brawny, silver-haired actor who plays special agent Bill Tench [based on FBI Agent Robert Ressler] in David Fincher’s Mindhunter, is mildly obsessed with serial killers. To prepare for the true-crime Netflix series’s second season, McCallany tried to reach out to the real Ed Kemper, a six-foot-nine killer who murdered 10 people—including his mother and grandparents. (He’s played in the show by Cameron Britton.) But Kemper never responded. So McCallany went to the California Medical Facility, where Kemper is housed. “When I got there, what I discovered is that Kemper has kind of given up on life,” the actor said. “He’s confined to a wheelchair. Do you know what I mean? He doesn’t really take visitors. He doesn’t bathe himself anymore. It’s very sad.”

Source: Vanity Fair, Mindhunter Season 2: Holt McCallany Really Tried to Talk to Son of Sam, August 16, 2019