TONIGHT: The chilling true-crime story of a mother who vanished. What happened that night? Find out tonight on the all-new 20/20 event special at 9|8c on ABC. #ABC2020 | ABC 20/20

NEW True Crime: Why did a handsome doctor, pilot, husband – really kill his wife? The only thing more shocking may be how he tried to cover up the crime. John Quiñones reports on the murder of a prominent doctor’s wife. Watch the all-new 20/20 - Friday at 9/8c on ABC. Stream next day on Hulu. | ABC 20/20

3.5M views · 8.8K reactions | TRUE CRIME: The mystery of a television news anchor gone missing - vanished. Now, what stunning revelations has a new investigation uncovered? ‘Gone at Dawn’ – the new 20/20 breaks Friday at 9|8c on ABC and stream on Hulu. | ABC 20/20 | Facebook

Go inside the chase to catch a serial killer. The all-new 20/20 true crime event, “The One That Got Out,” premieres Friday night at 9/8c on ABC. And stream on Hulu. | ABC 20/20

A family of four gone missing - no goodbye, no clues. What happened to this family? The all-new 20/20 true crime event, “What Happened to the McStays?” premieres Friday night at 9/8c on ABC. Stream on Hulu and Disney . | ABC 20/20