Valdosta , Georgia ( CNN ) -- New surveillance video released Wednesday in the case of a Georgia teen found dead inside a rolled-up gym mat raises more questions than it answers . There were 36 cameras inside and outside the gym of Lowndes High School in Valdosta , where the body of Kendrick Johnson was discovered . The video was released as a result of legal action , filed by his family , that CNN joined . Johnson 's family suspects the 17-year-old was murdered and that someone has tried to cover up evidence in the case . One clip shows Johnson in the gym . A second shows him walking in , then running out of the frame . In both videos , students suddenly appear . Federal prosecutor will look into Kendrick Johnson case . An attorney for Lowndes County Sheriff Chris Prine said the video was not altered or edited by anyone within the sheriff 's office . An attorney for the school likewise said that what was provided to the sheriff 's office was the raw feed , with no edits . A third clip , which shows students playing in the gym and the mats where Johnson 's body was found , is blurry . `` There are so many questions yet unanswered . As we 've said before , this is a real-life murder mystery and there just seems to be more and more adding to the mystery , '' Benjamin Crump , a family attorney , told CNN 's `` Anderson Cooper 360 . '' `` His parents have always said , all they want to know is the truth . And this video tape seems to tell us that the truth has not come out yet -- almost as if something was done with this one video to help conceal the truth . But we 're going to keep pressing to get the truth to this murder mystery , '' he added . Parents of Georgia teen found dead want answers . Last week , a prosecutor said federal authorities will investigate the circumstances behind the death of Johnson , whose body was found on January 11 . The Lowndes County Sheriff 's Office had declared the death accidental . While warning his jurisdiction is limited as a federal prosecutor , Michael Moore , the U.S. Attorney for the Middle District of Georgia , said after lengthy review of evidence collected by authorities and the family 's own investigator `` sufficient basis exists '' to warrant a formal review of the facts . Should evidence gathered in the investigation warrant criminal or civil rights charges , Moore said he would recommend them . `` I will follow the facts wherever they lead . My objective is to discover the truth , '' he said . Surveillance footage shows others .
Kendrick Johnson was found dead inside a rolled - up gym bag . His family believes he was murdered ; authorities say the death was accidental . The new video raises more questions than it answers .