John says detectives were able to extract a few DNA samples from JonBenet's pajamas back in 1996. Thanks to new technology called "touch DNA," officers were able to find more of the same DNA on other parts of her clothing. "It was overwhelmingly conclusive that this was, indeed, the killer's DNA," he says.
After announcing the latest developments in one of the most infamous unsolved murder cases in history, the Boulder district attorney wrote a letter to John and his family. Part of the letter said: "To the extent that we may have contributed in any way to the public perception that you might have been involved in this crime, I'm deeply sorry. No innocent person should have to endure such an extensive trial in the court of public opinion."
John says after hearing the statement he did feel a certain sense of relief. "It felt like progress," he says.