John and Patsy Ramsey were the highest-profile suspects in JonBenét Ramsey's murder. However, two other men separately confessed to killing the 6-year-old pageant princess

Investigators collected someone else's DNA from JonBenét’s fingernails and her underwear. Ultimately, the docuseries calls into question the validity of the DNA testing, but it had been previously determined that neither Patsy, John, nor Burke matched it.

Who Killed JonBenét Ramsey?” debuts on Netflix on Monday, four weeks before the Dec. 25 anniversary of Ramsey’s 1996 murder.