Investigation Discovery kicks off a new season of their groundbreaking missing persons series, “Disappeared” with the premiere of “Disappeared: The Bradley Sisters” — shedding light on an unsettling mystery that has haunted Chicago since July 6, 2001 when 10-year-old Tionda and 3-year-old Diamond Bradley disappeared without a trace from their apartment.

Retired Chicago Police Detective Pamela Childs joined WGN Morning News to talk about the case.

Love the WGN Morning News? We love you, too. And you can have all the hijinks delivered to your inbox every weekday morning. Sign up and subscribe to our WGN Morning News newsletter.