The father of the child beauty queen hopes that the latest DNA technology and familial genealogy research can help solve the cold case that is re-captivating the nation 28 years later.

On the morning of Dec. 26, 1996, John and Patsy Ramsey woke up to find their daughter, beauty queen JonBenet, missing from their Boulder home and a handwritten ransom note left on the stairs. Hours later, John Ramsey discovered her dead in their basement.

Who Killed JonBenét Ramsey has once again opened the case of the 6-year-old who was found dead in the safety of her own house in Boulder, Colora

The director of a new docuseries about her murder is urging police to share developments in the 28-year-old cold case.

From the ransom note to an unidentified bootprint, these pieces of evidence might hold the key to solving JonBenét Ramsey’s murder

John Ramsey hasn't given up hope in solving his daughter JonBenét's murder. The father of the late child explained why he thinks his little girl's cold case could be solved during an appearance on the Monday,

Read the full letter below and learn why many believed it was written by a relative of murdered 6-year-old JonBenét Ramsey.

We want them (police) to do more,” Ramsey said during an appearance on “ Elizabeth Vargas Reports .” “If they use the latest DNA technology, collaborate with labs, and use familial genealogy research,

The 6-year-old was killed in her home in Boulder, Colorado, in December 1996. John Ramsey told ABC News DNA testing and genealogy research could be key to finding the person responsible.