At least 17 people were killed when a teen opened fire at a high school in Parkland, Florida, on Wednesday afternoon, officials said. At least 15 others were wounded, five of whom suffering life-threatening injuries Wednesday night, hospital officials said. Authorities said the suspect, 19-year-old Nikolas Cruz, concealed himself in the crowd fleeing Marjory Stoneman Douglas High School. He was arrested in nearby Coral Springs. Broward County schools said Cruz had recently been expelled from Douglas for disciplinary reasons and was enrolled elsewhere in the district. Broward County Sheriff Scott Israel said Cruz was believed to have been armed with a AR-15-style semiautomatic rifle and multiple magazines. The gunfire began outside the school and continued inside, where 12 of the victims were killed, Israel said. All of those victims have been identified, he said, but no identities will be made public until the families of all of those affected have been notified.

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