Two Uvalde teens were recently arrested for Conspiracy to Commit Murder after officers said they foiled a mass-shooting plot the pair had schemed.
https://www.kens5.com/article/news/local/two-teens-arrested-after-planning-mass-casualty-event-for-uvalde-school/273-548565605

A press release obtained by KENS 5 thoroughly chronicles events leading up to an investigation performed by the Uvalde Police Department and the Texas Rangers.

In the press release, Uvalde Chief of Police Daniel Rodriguez said that a Morales Junior High School student,14, and a former Morales student, 13, had specifically targeted numerous students in what they described as a plan to perform a "mass casualty event against the school."