
On the Case with Paula Zahn
Emmy Award-winning Journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story featuring those closest to the case including lawyers, detectives, the victim's family and the convicted murderer, themselves.
- 2009-2026
- 29 seasons
- Discovery+
- Documentary, Suspense
- TV-14
Emmy Award-winning Journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story featuring those closest to the case including lawyers, detectives, the victim's family and the convicted murderer, themselves.
Season 20 Episode Guide
16 Episodes 2020
Episode 1
Shadow of Suspicion
Sun, Apr 26, 2020 48 mins
A young woman travels to California in pursuit of a Hollywood dream and winds up the victim of a savage homicide.

Episode 2
One of Us
Sun, May 3, 2020 48 mins
When a young records clerk at the Seattle police department is murdered on her way to work her overnight shift, the police must find the evidence to catch the killer of one of their own.
Episode 3
Salt in the Wound
Sun, May 10, 2020 48 mins
An independent young woman starting out in life on her own, becomes the victim of a bizarre and vicious homicide in her apartment.
Episode 4
Wedding Day Nightmare
Sun, May 17, 2020 48 mins
A young woman getting ready to be a bridesmaid at her best friend's wedding is found stabbed to death in her own home.
Episode 5
Little Lamb
Sun, May 24, 2020 48 mins
Detectives look for a gunman who killed a young mother but has let her young child live.
Episode 6
Terror in Bedford Park
Sun, Jun 7, 2020 48 mins
A young woman is found stabbed to death locked inside a locker at a storage facility.
Episode 7
Evidence Never Lies
Sun, Jun 7, 2020 48 mins
A young woman is found drowned in her bathtub and the evidence at the crime scene indicates her killer was someone she knew and trusted.
Episode 8
Long Walk, Cold Night
Sun, Jun 21, 2020 48 mins
When a teenage girl is found murdered after a night out with friend, Police must retrace her final steps to find her killer.
Episode 9
Texts, Lies, and Videotape
Sun, Jun 28, 2020 48 mins
When a young mother disappears, a series of text messages from her phone lead police to believe she left on her own. Then, her family uncovers evidence that she may have actually been the victim of foul play.
Episode 10
A Predator in the Woods
Sun, Jul 5, 2020 48 mins
Two young girls are lured into a deadly trap by a vicious sexual predator. Can the lone survivor of the attack help police bring her best friend's killer to justice?
Episode 11
In the Wind
Sun, Jul 12, 2020 48 mins
A daughter's quest to see her birth mother's murder solved is complicated when police discover the prime suspect is in the wind.
Episode 12
Lying in the Darkness
Sun, Jul 26, 2020 48 mins
A jeep swerves off a dark stretch of road and takes the life of a loving mother. But when law enforcement arrives, they discover evidence that the accident wasn't the cause of her death.

Episode 13
Spreadsheet of Terror
Sun, Aug 2, 2020 48 mins
When the body of a 15 year old girl is found in the Columbia River, police wonder if she was the victim of an accident or suicide.
Episode 14
A Test of Patience
Sat, Aug 8, 2020 48 mins
The unsolved 1979 murder of teenager Michelle Martinko tormented a small Midwestern city, Cedar Rapids, Iowa for decades, until a relentless team of investigators finally found the clue to break the case wide open. Due to the advancement of DNA and genetics, on December 19, 2018, thirty-nine years after her murder, police finally identified her murderer: Jerry Lynn Burns, a 64-year-old male who was 25 years old when the tragedy happened. Burns was arrested and, on February 24, 2020, was found guilty of first-degree murder in the death of Martinko. On August 7, 2020, Burns was sentenced to life in prison without parole.

Episode 15
A Heartbreaking Discovery
Sun, Aug 16, 2020 48 mins
A 25-year-old preschool teacher and mother to a 1-year-old daughter, Ashley Mead, was last seen on February 12, 2017. The Boulder, Colorado resident was reported missing two days after she did not show up for work. It was confirmed by investigators that Mead was murdered in her apartment. In the end, Adam Densmore was charged with her murder and was found guilty. He was sentenced to life in prison without the possibility of parole.
Episode 16
Episode #20.16
Mon, Aug 24, 2020 48 mins