4 video moments that capture the terror of the Florida school shooting

(CNN)Marjory Stoneman Douglas High School in South Florida is still reeling from a shooting Wednesday that left 17 people dead. These video moments, some captured on cellphones, show what that terrifying afternoon was like.

Students hide

Video shows students hiding as shots are fired
Video shows students hiding as shots are fired

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    Video shows students hiding as shots are fired

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Video shows students hiding as shots are fired 00:39
A student posted this video to social media showing his peers hiding in a classroom while the gunman opened fire.

Police storm into classroom

    Video shows moment authorities enter classroom
    Video shows moment authorities enter classroom

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      Video shows moment authorities enter classroom

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    Video shows moment authorities enter classroom 01:00
    A student captured the moment police entered a classroom of terrified kids after the deadly massacre.

    Students flee to safety

    Student witness: I heard gunshots and ran
    Student witness: I heard gunshots and ran

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      Student witness: I heard gunshots and ran

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    Student witness: I heard gunshots and ran 01:43
    A high schooler describes how she fled to safety in the middle of the chaos.

    Emotional reunions

    Mom's tearful reunion after shooting
    florida school shooting mother daughter reunite orig mg_00001827

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      Mom's tearful reunion after shooting

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    Mom's tearful reunion after shooting 01:02
    TV cameras captured the tearful moment a mother was reunited with her student daughter outside the school.