The last time Nirvana manager Danny Goldberg saw Kurt Cobain, the musician was "really stoned"—as might be expected at an intervention. Seven or eight people had gathered to plead with the Nirvana frontman to enter treatment for heroin addiction. Cobain was "not happy, and feeling invaded," but "I was in a hurry to get home, and I let an impatience and brittleness get into my tone," Goldberg tells Yahoo. "You just go over in your head: 'Is there something I could've done?'" But "I think this was a mental illness that nobody knew how to cure." A week later, after a make-up phone call with Goldberg, Cobain committed suicide on April 5, 1994. "I'll never get over it," says Goldberg, who just released the memoir, Serving the Servant: Remembering Kurt Cobain. Here's how others are marking the 25th anniversary of Cobain's death: