On the first day of school, a 17 year-old student is in critical condition after he was shot by a teenage gunman, who was subdued quickly by a teacher.
The gunman was another student of the Baltimore school, who was 15 and arrested, Baltimore County Police Chief Jim Johnson said.
The name of the guman was not released.
The police told that the boy walked into the school cafeteria at 15.45 AM and fired one shot.
After that shot, a teacher wrestled him against a wall, holding the gun away from the shooter.