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 Results from a third autopsy conducted on the body of Kendrick Johnson — the second performed at the behest of Johnson’s parents — have been released, contradicting an earlier conclusion that the 17-year-old’s death was accidental. But the new autopsy’s impact is likely to be minimal, as a lengthy federal investigation already concluded there was no evidence of foul play. 
 
 Johnson, the Lowndes High School sophomore whose body was found in a rolled-up gym mat nearly six years ago, died from non-accidental blunt force trauma between his neck and abdomen, the third autopsy concludes. That mirrors the findings from the first autopsy, paid for by Kendrick’s parents, Kenneth and Jackie Johnson, who once again hired William Anderson to examine their son’s body. 
 
 IN-DEPTH: Old wounds, old hatred, new media in Valdosta gym mat death 
 
 RELATED: Valdosta teen’s second autopsy concludes death no accident 
 
 PREVIOUS: Kendrick Johnson’s parents will exhume his body — again 
 
 The state medical examiner’s office found the cause of death to be “positional asphyxia,” meaning he became trapped in a position that caused him to suffocate. That finding led the Lowndes County Sheriff’s Office to classify Johnson’s death as an accident. A review of the autopsies commissioned by federal investigators determined the GBI’s autopsy was more credible. 
 
 But the Johnsons have never accepted the official line. 
 
 “Kendrick KJ Johnson WAS MURDERED but we already knew that,” Jackie Johnson wrote on Facebook Friday morning. 
 
 Jackie and Kenny Johnson (center) speak to the crowd during a “Who Killed K.J.” rally for their son Kendrick Johnson in front of the Georgia State Capitol in Atlanta on Dec. 11, 2013. On the left is Benjamin Crump, the family’s co-counsel at the time. PHIL SKINNER / PSKINNER@AJC.COM (The Atlanta Journal-Constitution) 
 
 The Johnsons remain convinced their son was killed by brothers Brian and Branden Bell, sons of a local FBI agent. Video evidence showed the Bells were nowhere near the old gymnasium of Lowndes High when Johnson was last seen alive. 
 
 State and local investigators believe he got stuck inside the large, rolled-up gym mat, presumably reaching for a pair of sneakers. A lengthy federal investigation followed. 
 
 In 2016, the Justice Department concluded there was “insufficient evidence to prove beyond a reasonable doubt that someone or some group of people willfully violated Kendrick Johnson’s civil rights or committed any other prosecutable federal crime.” 
 
 Subsequent civil lawsuits filed by the Johnsons alleged a vast conspiracy and cover-up that included an FBI agent, a former sheriff and Lowndes County’s school superintendent. 
 
 The Johnsons were ordered last year to pay attorney’s fees to multiple defendants named in one of their suits. The judge in the case accused the Johnsons and their attorney, Chevene King, of fabricating evidence to support their claims.
– A third autopsy has been done in the strange case of a teen found dead in a rolled-up gym mat in January 2013, and this one found evidence of foul play. Kendrick Johnson's parents have had two of the three autopsies done, as they continue to insist the 17-year-old's death was no accident, the Atlanta Journal-Constitution reports. The Georgia sophomore was found upside down in the mat in his high school's gym; state and local investigators believe he got stuck inside while reaching for a pair of sneakers. The state medical examiner's office found that he died of positional asphyxia, meaning that he suffocated due to the position he was trapped in. The Lowndes County Sheriff's Office classified his death as accidental, and Kenneth and Jackie Johnson have been fighting that finding ever since; they have had their son's body exhumed twice, per the Valdosta Daily Times. The two autopsies done at their request found the teen died of non-accidental blunt force trauma between his neck and abdomen. The Johnsons believe their son was killed by two sons of a local FBI agent, though video evidence showed they were not near the Lowndes High School gym at the time Johnson was last seen alive. A federal investigation was opened into the teen's death and ultimately found no evidence of foul play. Because of that, the Journal-Constitution says the impact of the latest autopsy will likely be "minimal." But WALB reports that in addition to the latest autopsy, the Johnsons submitted an affidavit to the local sheriff's office stating that they were told this year someone killed their son by hitting him in the chest with a 45-pound dumbbell and that surveillance footage was edited to remove more than an hour of video. They are hoping to get the case re-opened. (Click for more on the case.)