20/20

"Cold Blooded" host Chris Connelly and "Start Here" host Brad Mielke discuss the dualities... more

Marni Yang, a single mother of three who is serving a double life sentence in the murder o... more

ABC's Kayna Whitworth shares the latest in the case of Brian Kohberger. Learn more about ... more

New details uncovered about the crime, evidence and shocking guilty plea in the Idaho Coll... more

In episode six of Cold Blooded: Mystery in Alaska, investigators race to get their smoking... more

The couple at the center of the so-called "Gone Girl" kidnapping case reveal details to "2... more

Journalist T.J. Quinn takes us inside ESPN's four-year investigation of student-athlete La... more

A college student is murdered after being stalked. Did the University fail to protect her?... more

In this bonus episode of "Devil in the Desert," we look back at the perspective of the elu... more

In episode five of Cold Blooded: Mystery in Alaska, a secret and dangerous relationship is... more

A true crime love triangle mystery, featuring 20/20's interview with the wife the day befo... more

ABC News legal contributor Matt Murphy shares insights from his 26 years as a prosecutor i... more

David Muir investigates how cutting-edge forensic DNA technology has led to long-awaited j... more

In episode four of Cold Blooded: Mystery in Alaska, Ketchikan police set up a ruse to draw... more

The first wife of "Jekyll and Hyde" Manhattan plastic surgeon mysteriously disappears. Mor... more

The 20/20 team discusses their report about the murder of a New Jersey mom that sparked an... more

The murder of a beloved mom sparks an international manhunt; police uncover clues in an ac... more

Dr. Eric Garcia was a collector of valuables. Could the theft of hundreds of thousands of ... more

"20/20" features the first network interview with Wendi Mae Davidson from prison, where sh... more

Chris Connelly, host of "Cold Blooded: Mystery in Alaska," shares insights about the case ... more