1. RAW: Heroic student talks about tackling suspect
  2. Key facts reported as of 12 p.m. ET
    • One adult and 19 students were stabbed at Franklin Regional High School in Murrysville, Pa. 
    • Suspect is a 16-year-old male sophomore and was taken into custody
    • Attack started at about 7:15 a.m. ET
    • Suspect thought to have had two knives
    • School security officer called 911 and same officer was injured by the attacker
    • 19 students were injured, but not all injuries were puncture wounds
    • A school administrator is being credited with tackling the suspect, ending the attack
    • Attack lasted 20-30 minutes
    • Eight patients (seven students and one adult) are at Forbes Region Hospital in Monroeville, Pa., 3 of which have serious wounds
    • Five students were taken to UPMC East in Monroeville, Four students were taken to Children's Hospital in Lawrenceville, one at UPMC Mercy and one at UPMC Presbyterian in Oakland
    • Investigators haven't determined a motive
  3. RAW: Suspect taken from police department to hospital
  4. #SchoolStabbing: Emotional images circulating on social media
  5. Not verified yet, but this Instagram photo from user nate_scimio is being widely shared on social networks. He's being credited with pulling the fire alarm and screaming after he got stabbed, possibly saving many people
  6. RAW: Authorities provide detailed update on injuries, suspect (10:45 AM)
  7. RAW: Hospital officials hold news conference