AP News in Brief: 03-21-18

A mother walks her daughter, a student from Great Mills High School, to the car as she picks her up from Leonardtown High School in Leonardtown, Md., Tuesday, March 20, 2018. A teenager wounded a girl and a boy inside his Maryland high school Tuesday before a school resource officer was able to intervene, and each of them fired one more round as the shooter was fatally wounded, a sheriff said. St. Mary's County Sheriff Tim Cameron said the student with the handgun was declared dead at a hospital, and the other two students were in critical condition. (AP Photo/Carolyn Kaster)

Teen shoots girl at school, killed in confrontation