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” is introducing a new generation to the mysterious 1996 killing of a child pageant star.

While it starts out with a little background on the case, the docuseries quickly gets into the Ramseys as a family, including about JonBenét's mom, Patsy, a journalism graduate.