by Jim Watson, with Chris Lefkow in Washington Agence France Presse GREAT MILLS, United States (AFP) — A 17-year-old student armed with a handgun shot and critically wounded a female classmate at a Maryland high school on Tuesday, officials said, in an outburst of violence just days before a student-organized nationwide march for gun control. St. Mary’s County Sheriff Tim Cameron said the assailant, identified as Austin Rollins, died of a gunshot wound after a […]