MEGADETH. Megadeth co-founder and bassist on meeting ex-Metallica guitarist Dave Mustaine; No Life 'Til Leather; hearing Kill 'Em All for the first time; meeting James and Lars; "Mechanix" / "The Four Horsemen"; "Go to Hell" / "Enter Sandman,"; behind the scenes of the Big 4 shows; Lars Ulrich's favorite Megadeth song; James Hetfield's evolution as a lyricist; the Black Album; A Year and a Half in the Life of Metallica; the late Nick Menza and Gar Samuelson; what makes both Dave Mustaine and Metallica so special; and 35 years of Megadeth.