Parkland school shooting: Families devastated as gunman spared death

In the aftermath of the killings, prosecutors presented evidence that the attack had been premeditated. The gunman researched past mass killings, and posted online comments in which he said he would show "no mercy". In one video, taken days before the shooting, the gunman said he planned to be the "next school shooter" of the year and that his goal was to murder at least 20 people.