Police and rescue workers attend the scene near Marjory Stoneman Douglas High School following a shooting incident in Parkland

Police and rescue workers attend the scene near Marjory Stoneman Douglas High School following a shooting incident in Parkland

Police and rescue workers attend the scene near Marjory Stoneman Douglas High School following a shooting incident in Parkland, Florida, U.S. February 14, 2018 in a still image taken from a video. WSVN.com via REUTERS.