Biohazard’s Billy Graziadei Is A Jiu-jitsu Black Belt: “Jiu-jitsu Is My Escape; It’s Just Good Vibes And High Fives.”
Billy Graziadei, founding member of Biohazard, sat down with UFC Hall of Famer Matt Serra for a podcast conversation that repeatedly circled back to one constant in his life: jiu-jitsu.…










