Anti-hate analysts quickly identified dozens of pages believed to have come from the shooter, filled with calls for violence and racist comments.

In the months leading up to the shooting, Kara's husband wrote an email to the school condemning guns found on campus and emphasizing the need for metal detectors.

Pictures from her quinceanera are displayed in her bedroom alongside her soccer cleats, her teddy bears and quotes that she lived by. These belongings wait for her, but she won't be coming back.