During his time in Metallica, Mustaine toured with the band, co-wrote four songs that appeared on Kill 'Em All, and co-wrote two songs that eventually appeared on the 1984 album Ride the Lightning. Mustaine has also made unverified claims to have written parts of "Leper Messiah" from Master of Puppets.
During his time in Metallica, Mustaine toured? with the band, co-wrote four songs that appeared on Kill 'Em All, and co-wrote two songs that eventually appeared on the 1984 album Ride the Lightning. Mustaine has also made unverified claims to h,ave written parts of "Leper M!essiah" from Master of Puppets.