MURRYSVILLE, Pa. (AP) - A police chief says a 16-year-old boy "was flashing two knives around" when he injured 19 students and a school police officer who eventually subdued him with the help of an assistant principal at a high school near Pittsburgh.
Murrysville police Chief Thomas Seefeld says the bloody crime scene left behind Wednesday at Franklin Regional High School is "vast" and may take a couple of days to process.
Police haven't named the suspect who was taken into custody but says he's being treated for a minor hand wound.
Investigators haven't determined a motive but say they're looking into reports of a threatening phone call between the suspect and another student the night before.
At least two of the victims were in critical condition, though doctors expect all victims to survive.
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