After Pennsylvania school stabbing, authorities and community ask: ‘Why?’
MURRYSVILLE, Pennsylvania (CNN) -- A day after a Pennsylvania student rampaged through his high school's hallways, stabbing wildly with two kitchen knives, hints of a motive remain elusive. Who is 16-year-old Alex Hribal, and what troubled him? Hribal was charged as an adult and faces four counts of attempted homicide and 21 counts of aggravated assault related to the 21 people he allegedly wounded.