Their mother said he left. And for years, Mike Carroll believed her. But as he and his siblings got older, the story stopped making sense. Their father’s car was still there. So was his wallet. And no one ever filed a missing persons report. "The Secrets We Bury" unravels the true story of Mike Carroll’s decades-long search for answers and the chilling secrets that surfaced along the way. Watch "The Secrets We Bury" Tuesday 12/16 on ID and streaming on @HBOMax. #TheSecretsWeBury | Investigation