Student to be charged as adult after school stabbing

Source: Teen accused in stabbing rampage in Pa. school charged as adult
CNN
By Chelsea J. Carter, Ashley Fantz and Pamela Brown
updated 5:51 PM EDT, Wed April 9, 2014

STORY HIGHLIGHTS
NEW: 20 students and one adult were injured in the attack, the district attorney says
The 16-year-old accused in the attack has been charged as an adult, a source says
Teachers use students' hoodies as tourniquets on injured teens, student says
An assistant principal tackled the accused attacker, authorities say

Murrysville, Pennsylvania (CNN) -- A teenage boy wielding two kitchen knives went on a stabbing rampage at his high school in Murrysville, Pennsylvania, early Wednesday, before being tackled by an assistant principal, authorities said.

Twenty students and a security officer at Franklin Regional Senior High School were injured in the attack, District Attorney John Peck told reporters.

As authorities work to piece together a possible motive, the accused attacker -- a 16-year-old sophomore -- has been arraigned by a Pennsylvanian magistrate, said Dan Stevens, deputy emergency management coordinator for Westmoreland County.

The teen has been charged as an adult, a source close to the investigation told CNN. The source, speaking on condition of anonymity, said he has been charged with attempted homicide.

A doctor who treated six of the victims, primarily teens, said most initially did not know what happened.

"They just felt pain and noticed they were bleeding," Dr. Timothy VanFleet, chief of emergency medicine at the University of Pittsburgh Medical Center, told CNN.

"Almost all of them said they didn't see anyone coming at them. It apparently was a crowded hallway and they were going about their business, and then just felt pain and started bleeding."
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