A former student who had been expelled for disciplinary problems opened fire at a Florida high school Wednesday, killing 17 people. Broward County Sheriff Scott Israel identified the alleged gunman as Nicolas Cruz and said police arrested him off school grounds without a struggle.
Florida School Shooting

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Florida Gov. Rick Scott speaks during a news conference near Marjory Stoneman Douglas High School in Parkland, where a former student is suspected of killing at least 17 people, Feb. 14, 2018.

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A woman consoles another at Marjory Stoneman Douglas High School in Parkland, Feb. 14, 2018.

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A law enforcement officer tells anxious family members to move back, Feb. 14, 2018, in Parkland, Florida. Police warned that the shooter was still at large even as ambulances converged on the scene and emergency workers appeared to be treating those possibly wounded.

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Students are evacuated from Marjory Stoneman Douglas High School during a shooting incident in Parkland, Feb. 14, 2018 in a still image from video.