Complete coverage of the attack at a high school outside of Pittsburgh, PA, where a student went on a bloody rampage and knifed 20 people on the morning of April 9, 2014.


Stab-Spree Suspect Alex Hribal Included in Franklin Regional Yearbook Stab-Spree Suspect Alex Hribal Included in Franklin Regional Yearbook Stab-Spree Suspect Alex Hribal Included in Franklin Regional Yearbook Stab-Spree Suspect Alex Hribal Included in Franklin Regional Yearbook

Stabbing-Spree Suspect Included in School Yearbook

Keith Srakocic / AP, file
Last Victim of Pennsylvania School Stabbing Spree Leaves Hospital

'Tremendous Joy': Last Stabbing Victim Leaves Hospital

Franklin Regional School District
Stabbing Spree Prompts Clear-Bag Rule at Pennsylvania School

School Mandates Clear Bags After Stabbing Spree

School Stab-Spree Suspect Alex Hribal Planned to Kill, Cops Say

School Stabbing Victim's Condition Upgraded to Fair

Stabbing Rampage: Students 'Never Felt More Safe' in Return

Stabbing Rampage: Students Return to Pa. School For First Time

Police Release Chilling Details on High School Stabbing

Pennsylvania High School to Reopen Wednesday After Stabbing Spree

Teen Nearly Stabbed in Heart to Undergo More Surgery

'Something Went Wrong': Stabbing Suspect Gets Psychiatric Exam

School in Pennsylvania Stabbing Spree to Reopen Next Week


School Stabbing: First Responders' Horrifying Moments

Stabbing Suspect Alex Hribal Motivated by Rage and Adrenaline, Criminologists Say

Guard William 'Buzz' Yakshe Back on the Job After Stabbing

Alex Hribal Is Not 'a Loner or a Weirdo,' Lawyer Says


AskNBCNews: How Safe Are Our Schools Replay


Doctor: Stabbing Victim Had 'Severe Injuries'


Son, Mom Recount 'Chaos' of School Stabbing

Doctors Operate Again on Teen Nearly Stabbed in Heart

Exactly How Safe Are Our Schools? An #AskNBCNews Live Webcast


Stabbing Victim Mom: 'I Hope This Child Can Find Peace'

Teen Charged in Stabbings Could Face Effective Life Sentence: Expert

School Stabbing: The 9 Most Dramatic Images

Teen Stabbed in School Attack Wondered: 'Will I Survive or Will I Die?'

Stab-Spree Suspect Held in General Population at Juvenile Lockup

High School Stabbing Suspect Confused and Scared, Lawyer Says


Stabbing Suspect Charged


Police Chief Details Charges Against Suspect in Stabbing Spree


Official Comments on Claims of School Bullying Problem

Teen Suspected in Stabbing Spree Will Be Charged As Adult


Community Holds Vigil for School Stabbing Victims


Student: 'This is not supposed to happen here'

Five Questions About Alex Hribal and the Pennsylvania School Stabbings


Student's Heroic Actions May Have Saved Classmate's Life


School Stabbing: Students Saw 'Blood Everywhere'

Teen Held on 26 Counts in High School Bloodbath


Police Details Chaotic Scene of School Stabbing

Assistant Principal Sam King, Hero in Stabbings, Is 'the Greatest Guy'

School Stabbing Spree Lasted Five Terrifying Minutes: Police

EXCLUSIVE: Girl Tells Stab Victim, 'We're Going to Go to Prom'


Stabbing Suspect, Principal Live on Same Street


17-Year-Old Student in Critical Condition, On Life Support


Emergency Director: Stabbing Timing Assisted Police Response


First Photo Emerges of Teen Suspect in School Stabbing

Student Victim 'Chillin at Children's' After Stabbing

Knife Narrowly Misses High School Stabbing Victim's Heart

School Stabbing Suspect 'Did Not Seem Like a Mean Kid'


Student: 'There Was Blood All Over the Floor'

Rampage at Pa. School Occurs a Year Since Similar Bloody Assault


Hospital Officials Detail Condition of Stabbing Victims


Police: School Principal Tackled Stabbing Suspect

PA Governor Corbett Statement on High School Stabbing


Authorities: Stabbing Suspect, Victims All Students

Student Describes School Terror: 'Someone Is Stabbing People'


20 Reported Stabbed At Pittsburgh Area School


Multiple Stabbings Reported At Pittsburgh Area School

School Stabbing Spree: 20 Hurt in Pittsburgh-Area Bloodbath