Sheriff: Shooter at Maryland high school killed himself

Authorities say the student who fatally shot a female classmate at a Maryland high school died from a self-inflicted gunshot wound.The St. Mary's County Sheriff's Office said in a statement Monday that 17-year-old Austin Rollins fired one fatal shot to his head.The sheriff's office says Rollins killed himself during a confrontation with a school resource officer who also fired his weapon. It says the shot fired by the officer, sheriff's deputy Blaine Gaskill, struck the gun in Rollins' hand.The