Pittsburgh-area teen injures 22 in school stabbing

A 16-year-old student wielding two knives went on a stabbing rampage in the hallways of a Pittsburgh-area high school on Wednesday, injuring 22 people before he was tackled by an assistant principal, officials said.

The attacker moved stealthily through the halls of Franklin Regional High School, stabbing his victims in the torso and slashing their arms and faces, students and officials said. Some of the injured taken to nearby hospitals were in critical condition, doctors said.

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