After JonBenét Ramsey was murdered in 1996, the family hired private investigator John San Agustin. He was the first to theorize that her murder was committed by an intruder. In 2019, San Agustin spoke to Dr. Oz about what he said police overlooked at the crime scene.

After being convicted of killing his fiancée and enlisting his girlfriend to clean up the crime scene, could Patrick Frazee’s disturbing prison letters reveal new details in the case?