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fore the morning bell rang. He said he didn't think much of it -- it could've been someone popping a plastic bag.
• But then he saw an injured boy clutching his wounded arm. He watched his fifth-period math teacher, Michael Landsberry, walk toward a student and fall to the ground.
• "When he pulled a gun, we knew what happened," Ferro told The Associated Press on Tuesday.
• Moments later, the eighth grader was cowered against a wall with some classmates, burying his face in his hands as a 12-year-old boy waved a semi-automatic

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