Pensacola, Fla. ? The family of a teenager who died at a boot camp for juvenile delinquents plans to exhume his body for a second autopsy because they do not believe the official finding that the death was unrelated to a scuffle with guards.

Martin Lee Anderson’s family disputes that he died from hemorrhaging caused by sickle cell trait, a normally benign condition, and not from a 30-minute confrontation with guards that was captured by a camp security camera.

Martin, 14, died early Jan. 6, hours after he collapsed while running laps and doing other exercises that were part of his admission to the Bay County Sheriff’s Office Boot Camp.

He had entered the camp for violating probation in a theft case.

The security video shows as many as nine guards kneeing, hitting and dragging Anderson around the exercise yard. The sheriff’s office has said the guards were trying to get Anderson to participate after he became uncooperative. No one has been charged or fired.