Students Send Parents Panicked Texts During School Shooting

Text messages sent by students caught in a Georgia school shooting are being revealed. Erin Clark's son, Ethan, sent her text messages as he barricaded the door of his classroom. The FBI says they received anonymous tips last year about threats to commit a school shooting that had been made on an online gaming site. Based on the tips, they interviewed Colt Gray and his father at their home. The teen denied making the threat and authorities determined there was no probable cause to arrest him.