FILE – In this Feb. 14, 2018 file photo, students hold their hands in the air as they are evacuated by police from Marjory Stoneman Douglas High School in Parkland, Fla., after a shooter opened fire on the campus. A sheriff’s office captain told deputies to form a perimeter instead of confronting the gunman at the high school where several people were killed in a mass shooting, according to documents obtained by the Miami Herald. The newspaper reported late Thursday, March 1, that it had obtained a partial Broward Sheriff’s Office dispatch log, which showed that Capt. Jan Jordan gave the order for deputies to establish a perimeter. (Mike Stocker/South Florida Sun-Sentinel via AP)