Luke Bonner referees a 3-on-3 boys basketball tournament game during Rock On Fest in downtown Concord on Friday, Aug. 11, 2017. (ELIZABETH FRANTZ / Monitor staff) ELIZABETH FRANTZ
Matt Bonner (left) as DJ Red Mamba and Luke Bonner took the stage during the DJ Red Mamba Family Fun Dance Party of Rock On Fest at White Park in Concord on Aug. 13, 2016. (ELIZABETH FRANTZ / Monitor staff) Elizabeth Frantz
