Did he really? Convicted pedophile claims he killed little JonBenet Ramsey!

Convicted pedophile Gary Oliva is claiming he killed JonBenet Ramsey, the six-year-old girl whose murder is Boulder, Colorado, was one of the biggest crime stories of the last two decades. Nancy Grace looks at the claim and the evidence with Colorado private investigator Bobby Brown, Los Angeles defense lawyer Troy Slaten, Cold Case Research Institute director Sheryl McCollum, South Carolina medical examiner Dr. Michelle Dupre -- author of "Homicide Investigation Field Guide," Crime Stories reporter Robyn Walensky -- author of "Beautiful Life?: The CSI Behind the Casey Anthony Trial & My Observations."

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