Globe/T. Rob Brown
Jan Crandon, special education teacher, right, and Junior Principal Greg Boyd close doors to storm shelters during a tornado drill Tuesday afternoon, March 13, 2012, behind Joplin High School's junior and senior campus at Northpark Mall.

JoplinMissouriMOJHSHigh SchooltornadodrillprincipalGregBoydstudentssheltersNorthpark MallT. RobBrownJanCrandonspecial educationteacher