Updated: Friday, May 18, 2018, 2:17 p.m. EDT: A law enforcement official, speaking on the condition of anonymity, has identified the Santa Fe, Texas, school shooting suspect as 17-year-old Dimitrios Pagourtzis.

Updated Tuesday, March 20, 2018, 2:09 p.m. EDT: The gunman involved in the shooting that left two Maryland high schoolers injured early Tuesday morning has been identified as 17-year-old Austin Wyatt Rollins.