One of the incidents involved a social media threat reported on Sept. 17 titled "The List" and contained the names of Stapley Junior High students. Mesa police said the list was created back in March by a 13-year-old who was charged with disrupting an educational facility and other charges are currently pending.

In the past two weeks, 17 threats of violence have been made within Mesa Public School – the Mesa Police Department is calling this an online nationwide trend. FOX 10's Nicole Krasean has the latest.