Learn more about Second Lieutenant Holley Lynn James, an Iowa-native that was murdered in North Carolina in 2008.

An all-new 20/20 reveals never-before-seen evidence in a chilling cold case that disturbed Central California for decades.

A Colorado dentist and father of six who killed his wife by poisoning her protein shakes. The all-new 20/20 “21 Days to Murder" premieres Friday, Sept. 19th at 9/8c on ABC. Stream on Hulu and Disney+.

A clue from social media that changes the entire course of a murder investigation. The all-new 20/20 “Road Map to Murder” premieres Friday, May 30th at 9/8c on ABC Network. Stream on Hulu. California ...

Trailer: 20/20 ‘Road Map to Murder’ airs Friday, May 30th on ABC A clue from social media that changes the entire course of a murder investigation. The all-new 20/20 “Road Map to Murder” premieres ...