While both comedians imbibed their fair share of psychoactive substances, John Belushi’s drug use was really on a whole ‘nother level. Vulture reports that Williams hung out with Belushi in the early morning hours of March 4, 1982, and told his “Mork & Mindy” costar Pam Dawber the next day that the SNL cast member had been so high that he “could hardly stand up.” Still, Belushi was with it enough to play his guitar “to perfection.”
Williams was devastated later that day when Dawber broke the news to him that Belushi had died from a lethal drug overdose not long after Williams left his bungalow on the Sunset Strip. After Williams left, Canadian singer and drug dealer Cathy Evelyn Smith mixed up a couple of the drug cocktails of heroin and cocaine known as speedballs and injected one into the actor’s veins and one into her own. The 33-year-old comedian didn’t survive the dose.
The news shocked the Hollywood elite and the world at large. Dawber was reportedly worried about Williams suffering the same fate, and she told him point blank. She told Williams that if the same ever happened to him, “I will find you and kill you first.” That one hit Williams hard. Dawber saw him on set a while later in deep contemplation. “That’s never going to happen to me, Dawbs,” he said.