A move from the Decca label to EMI saw him gain a minor hit with "Diggin' My Potatoes". Differences of a professional and personal level with Meek appeared, and with Heinz introducing his girlfriend to Meek their relationship faltered. Although he had lived briefly in Meek's flat, further disagreements over royalties saw him move out, leaving some possessions behind including a shotgun. It was this shotgun with which Meek killed his landlady and then himself in 1967, and although Heinz was questioned by police, they concluded he had nothing to do with their deaths.