Federal Prosecutors to Investigate Gym Mat Suffocation Case

Georgia high school student's parents pushed for further investigation after son was found dead.
3:00 | 10/31/13

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Transcript for Federal Prosecutors to Investigate Gym Mat Suffocation Case
Major victory for a mother and father desperate for answers about their son. High school athlete who was found dead under mysterious circumstances for ten months those parents -- searched for answers. And tonight two major developments federal prosecutors now saying they will investigate. And now new surveillance tapes from inside the school revealing their son's final moments here tonight ABC's Steve -- and some. This is the surveillance video of the US attorney here has now asked the FBI to study tonight from that cold afternoon. Seventeen year old Kendrick Johnson in the white shirt walks into a busy high school gym and Georgia and never walks back out. It's just -- still close. To plan that would have a -- what happens next wasn't caught on camera the share of the school system and state pathologist all say that Johnson. Most likely dropped issue into a rolled up Jim Matt. And then suffocated trying to get it out Johnson's family refuses to believe this -- now convinced their US attorney to help. In this -- however I am of the opinion that sufficient basis exists for my office to conduct a formal review of the facts and investigation surrounding the death Kendrick jobs. The parents hired their own medical examiner who said this was a killing. Blunt force trauma to the neck when they exude his body many of his internal organs were missing. Authorities blame the funeral home. It's a tragedy but -- -- murder mystery on FaceBook Johnson's father posted this picture of himself. Wondering how anyone could squeeze in to a -- supporters from around the world writing I smell a cover up and this case makes no cents. We talk with school officials and investigators who insist they have nothing to hide and are saddened by Johnson's death. A judge has ordered authorities to turn over their entire case file to the family including the names of the minor scene in these videos. And exactly what they told police Steve docents on the ABC news Atlanta.

This transcript has been automatically generated and may not be 100% accurate.

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