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MURRYSVILLE, Pa. — The student charged in a bloody high school knife attack Wednesday is a small, slight teen who was teased at school, a classmate says.

Alex Hribal was so small and quiet "he was like a shadow in the hallways," said Kaitlyn Pepper, 16, who stood shivering after an outdoor candlelight vigil Wednesday evening at Calvary Lutheran Church, not far from Franklin Regional High School where they both attended.

Kaitlyn, a sophomore, had had one class with Hribal last year. She recalled that he was small for his age — "like a little boy," she said — and that he was teased.

"I'd witnessed people say things to him," she said. "I couldn't tell you who said. I didn't realize it was all that bad."

She didn't know what the teasing was about, but she described it as relentless at times.

"They just said things. They'd ride him and ride him, and today was the day that he snapped," she said.

Brett Hurt, a student injured in the Pennsylvania school stabbing says if the suspect, Alex Hribal, had had more friends, he may not have gone on a stabbing rampage that sent 20 people to the hospital.

Nikala Boyer, 14, said she barely missed becoming one of the victims as school started Wednesday morning. While Nikala put things in her locker, she said, a friend she had been talking with walked down the hall and was slashed in the neck by a boy running at her with a knife in each hand.

Nikala heard screaming and ran to hide in woods near the school. The girl she'd been talking to survived, with 17 stitches in her neck.

Note: Per 10 News's Crime Guidelines, we are naming the teen suspect in this case because he has been charged as an adult.

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