After months of back and forth trash talking, Star Boxing’s WBA#5, WBC #10, and IBF #13 world rated heavyweight contender Kevin “Kingpin” Johnson, 21-0-1 (8), will face off against two-time world title challenger Monte “Two Gunz” Barrett, 34-7 (20), on May 15 in the main event of ESPN2’S “Friday Night Fights” at The Concert Venue…