20x1 - Episode 1

20x2 - Who Wanted Nicki Lenway Dead?

April 1, 2024

A crime scene investigator is gunned down in broad daylight. Surveillance video captures the harrowing scene. Who pulled the trigger? Erin Moriarty reports.

20x3 - Episode 3

20x4 - Unmasking the Zombie Hunter

April 28, 2024

The murders of two young Phoenix, Arizona women, killed ten months apart in 1992 and 1993, goes unsolved for more than two decades. Then, thanks to time and new technology, police find a person of interest.

20x5 - Episode 5

20x6 - The Hunt for Sarah Yarborough's Killer

The 1991 murder of 16-year-old honour student Sarah Yarborough as she was on her way to high school drill team practise outside Seattle will take nearly three decades to solve.

20x7 - The Game Show and the Murder

April 22, 2024

On a 2019 TV game show, Tim Bliefnick said his biggest mistake at his wedding was saying "I do"; it was a joke at the time, but it didn't seem so funny years later, when amid a contentious divorce, his wife Becky is shot 14 times in her home.

20x8 - Death at the Front Door: Who Shot Heidi Firkus?

Heidi Firkus calls 911 after her husband claims an intruder is breaking into their Minnesota home. Heidi ends up dead, and the case remains cold for ten long years until a new investigator takes a fresh look.

20x9 - Andrew McDonald: A Millionaire Vanished

April 14, 2024

Millionaire business owner Andreen McDonald sets off a shocking police investigation in San Antonio, TX, after she fails to show up for work or for her usual gym workout.

20x10 - Episode 10

20x11 - Episode 11

20x12 - Episode 12

20x13 - Mystery on County Road M

Todd Kendhammer said his wife Barbara died in a freak accident when a pipe flew off a truck and smashed into the windshield of their car in 2016. A jury disagrees, but do they have all the evidence? Erin Moriarty reports.

20x14 - The Yogurt Shop Murders

In December 1991, four teenage girls were brutally murdered in a yogurt shop in Austin, Texas. Every lead in the case sent investigators to a dead end. Could new information finally help solve the case? Erin Moriarty reports.

20x15 - Episode 15

20x16 - Episode 16

20x17 - Episode 17

20x18 - Episode 18

20x19 - Episode 19

20x20 - Episode 20