#ReggieWatts fondness for ketamine is no secret. He’s a self-declared psychonaut and psychedelic evangelist. But friends of his late ex-girlfriend Katherine McCollough claim that Watts’ encouragement for McCollough to take a heavy array of drugs, including ketamine and psychedelics, in the name of enlightenment, led to addiction. It was her “undoing,” a friend tells Rolling Stone. McCollough died by suicide in March and her friends and sister hope her story can prevent others who heed Watts’ blanket endorsement of ketamine from falling into addiction.⁠ "I feel very strongly that the sister that I knew before this relationship would still be here if she had never met him,” her sister Colleen says. ⁠Through an attorney, Watts said it was “dangerously false” to suggest that he was responsible for McCollough’s death. The attorney also claimed McCollough was an “experienced” drug user who didn’t need “any so-called ‘encouragement’” from Watts to use substances.