Mark Morton is one of the two guitarists of the American heavy metal band Lamb of God. Biography Morton has a signature guitar deal with Jackson. He is the most reserved, introverted member of the band, and admits that he doesn't feel comfortable in the public eye. Aside from guitar, he's an avid wine enthusiast, a cigar aficionado, as well as an amateur race car driver. In their DVD release, Killadelphia, he got into a fist fight in which he bested liquored-up vocalist Randy Blythe.