ATTLEBORO â A suspect charged with robbing a Norton barber last week was deemed a dangerous person after a judge found compelling evidence against him Thursday. Michael Donovan, 34, of Boston, was ordered held in jail without bail by Judge Edmund Mathers following a dangerousness hearing in Attleboro District Court. Donovan is accused of participating in the assault and robbery of a 32-year-old barber Dec. 3 in the parking lot of the Boneheads Barbershop in a plaza off Route 123 in Norton. The barber gave a description to police of his attackers, one of whom wore a knit ski mask and used a glove, and the getaway vehicle.