Part 1: The brutal murder of kid beauty pageant contestant, JonBenet Ramsey inside her Boulder, Colorado home on Christmas 1996 sent shock waves felt around the country. Her killer left behind a  3-page ransom letter demanding $118,000. 

Quickly into the investigation, her parents, John and Patsy Ramsey came under an umbrella of suspicion as possibly being involved in JonBenet’s murder. 

But as the years turned to decades, without an arrest, the murder of JonBenet Ramsey has become one of the most notorious, unsolved murders our country has ever experienced.

Will JonBenet’s killer ever be identified? And how can forensic science help crack this one?