A gunman who shot and injured two teenage students at a high school in the US state of Maryland was shot dead after a gunfight with a security guard. Austin Wyatt Rollins, 17, shot a 16-year-old girl, who is in a critical condition, and a 14-year-old boy. The attack happened on Tuesday morning before lessons at Great Mills High School. Rollins had a prior relationship with the girl. The school shooting comes a month after a high school shooter killed 17 in Parkland, Florida. An armed campus guard, exchanged gunfire with the attacker but it is unclear if the gunman was hit by the guard’s gunfire or shot himself.
