Aimee Mann has shared a cover of Leonard Cohen’s 1971 song ‘Avalanche’ – listen t it below.The haunting cover serves as the theme song for HBO’s true-crime docu-series I’ll Be Gone In The Dark, which is inspired by the book, I’ll Be Gone In The Dark: One Woman’s Obsessive Search For The Golden State Killer, written and researched by the late Michelle McNamara.Mann was a friend of McNamara’s, so her being involved in the show which premiered in June is particularly poignant.“My husband, Michael