 Tensions reached a breaking point during October 1967 , when McGuinn and Hillman drove to Crosby 's home and fired him , stating that they would be better off without him . Crosby subsequently received a cash settlement , with which he bought a sailboat and soon after , he began working with Stephen Stills and Graham Nash in the successful supergroup Crosby , Stills & Nash . In the years since his exit from the Byrds , Crosby has enjoyed an influential and commercially successful career as a part of Crosby , Stills & Nash ( sometimes augmented by Neil Young ) , Crosby & Nash , CPR , and as a solo artist . During the 1980s , he fought against crippling drug addiction and eventually served a year in prison on drug @-@ related charges . He emerged from jail free of his drug habit and remains musically active up to the present day . 
