A video on Facebook appears to show an Oklahoma student at Caney Valley High School being choked unconscious by another student in a locker room — while teammates watch, laugh and cheer it on.

In the 36-second clip filmed by a student in the school’s locker room, a student wearing a school football jersey wraps his arms around the neck of another boy from behind. As he struggles, nearby students egg it on. Moments later, the boy goes limp and his head bounces off the floor. Laughter erupts around the room, and one voice can be heard saying, "He just killed him, bro." Another student, now alarmed, yells, "What did you do?"

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