Introducing "Into Thin Air"

In extended interviews, investigators shed more light on the disappearance of HaLeigh Cummings. And one of them describes something he was told as somewhat of a confession, though it never led to any arrests or the discovery of the little girl’s whereabouts. Learn more about your ad choices. Visit megaphone.fm/adchoices

The lead investigator who worked the disappearance of HaLeigh Cummings in 2009 reveals what he believes may have happened to the little girl. He also explains what has him convinced that she died hours before she was reported missing. Learn more about your ad choices. Visit megaphone.fm/adchoices

Immediately after 5-year-old HaLeigh Cummings' disappearance, father Ronald Cummings seems convinced his daughter was kidnapped -- and hasn't just wandered off on her own. Using clothes worn by the little girl, authorities and bloodhounds chase after her scent. Learn more about your ad choices. Visit megaphone.fm/adchoices

In the pre-dawn hours of Feb. 11, 2009, emergency dispatchers in Putnam County, Florida, take frantic 911 calls from a Satsuma home. They both relay the same message: 5-year-old HaLeigh Cummings is missing and the back door of the residence has been propped open with a cinder block. Authorities flood the scene as an all-out search begins for the little girl. Learn more about your ad choices. Visit megaphone.fm/adchoices

Ten years later, the disappearance of 5-year-old Haleigh Cummings continues to puzzle investigators. Learn more about your ad choices. Visit megaphone.fm/adchoices