Updated at 2:40 a.m. ET on Thursday
The Broward Sheriff's Office has identified the suspect in Wednesday's deadly school shooting as 19-year-old Nikolas Cruz, a former student who had been expelled for disciplinary reasons. Law enforcement says Cruz carried out the attack that killed at least 17 people at Marjory Stoneman Douglas High School and left others hospitalized with gunshot wounds.
Cruz is now in police custody after briefly receiving treatment at a local hospital.