WEARE – A father attacked his daughter's boyfriend last week after learning the boy had sex with the underage girl, police said. It was about 1:30 p.m. Monday, Sept. 10, when the man stormed onto the grounds of John J. Stark High School and beat up the 17-year-old from Henniker. School was just letting out, and many students witnessed the attack, said Detective Lou Chatel. The boy suffered bruising and later received two stitches to his face. The father was charged with simple assault, a Class B felony. Police said the boy is dating the man's 15-year-old daughter. The man...