A 21-year-old student stabbed to death in her own apartment. The hunt to catch a killer and a mother’s fight for justice. The all-new "20/20" true crime event premieres Friday night (May 16) at 9/8c on ABC – and stream on Hulu. | ABC 7 Chicago

“I never thought my husband was a diabolical murderer.” | Step inside a stunning true crime story with those who were there - and with bestselling crime writer Harlan Coben. Don’t miss this NEW 20/20 Event Special Friday night at 9|8c on ABC. #ABC2020 | ABC 20/20

A powerful & wealthy Southern family dynasty – shattered. A true crime mystery – still unraveling. Now, follow the evidence, the clues & see exclusive interviews with the family at the center of it all. The new 20/20 true crime event special premieres Friday night at 9|8c on ABC. Stream next day on Hulu. | ABC 20/20