Police and fire rescue vehicles converge on Stoneman Douglas High School in Parkland after reports of an active shooter on Wednesday, Feb. 14, 2018. (miamiherald.com)
Parents wait for their children outside Marjory Stoneman Douglas High School in Parkland after reports of an active shooter Wednesday, Feb. 14, 2018. (sun-sentinel.com)
Santa Fe High School in Texas was placed on lockdown Friday following reports of an active shooter. (ruthfullyyours.com)