Sheriff: Md. high school gunman had “prior relationship” with victim

GREAT MILLS, Md. — A teenager with a handgun opened fire inside his Maryland high school Tuesday before he was fatally wounded during a confrontation with a school resource officer, a sheriff said. Deputies and federal agents converged on the crime scene at Great Mills High School, about 65 miles southeast of Washington.
It wasn’t immediately clear whether the shooter took his own life or was killed by the officer’s bullet, St. Mary’s County Sheriff Tim Cameron said.