Episode list

A man is imprisoned for his wife's murder, but he may not have been the one who committed the crime;

Taking a look back at the Sherri Papini case and how she fooled investigators, family and the public with her phony fabricated kidnapping plot. Airing never-before-seen police tapes from the six-year saga.

The murder of Lyntell Washington, a Baton Rouge, Louisiana educator who was voted Teacher of the Year, is investigated; when authorities found the pregnant woman shot in the head, they were left with a cryptic clue from her 3-year-old daughter, who was found wandering nearby;

Brittanee Drexel's disappearance from Myrtle Beach, South Carolina, in April 2009 left her family and the nation struggling for answers about what happened to the missing high school junior.

An international search for millionaire Peter Chadwick, strongly suspected in his wife's murder, takes a twist when his case gains momentum due to a Newport Beach Police Department podcast.

Video evidence leads police to learn the shocking identity of an Arkansas senator's killer;

Four decades after three Girl Scouts are murdered at summer camp, police attempt to crack the case.

This installment discusses how Earl Olander's stolen family Bible held the clues in the case of the murdered Minnesota farmer.

When a husband is violently murdered, his wife and her alleged lover become suspects;

Late September 2014, Davison, Genesee County, Michigan: Christina Harris (Christina Ann-Thompson Harris) age 36 was found dead in her home. The police investigation went cold for several years until the Genesee County Medical Examiner changed her manner of death from "accident" to "homicide." In 2017, her husband Jason Harris, now age 47, was arrested for her murder and was found guilty by a jury. He was sentenced to life in prison with no chance of parole. It was determined that he had laced her morning cereal with an overdose of illegal heroin. This led to him being referred to as the "cereal killer."

Police launched a 38-day nationwide search, after a teacher takes his 15-year-old student away with him;

Exclusive interview with a fake doctor, Dean Faiello, who hid a deadly secret.

A twisted story of greed and murder, behind Chippendales;

The investigation into the murder of a Texas husband and wife reveals that the killer may have been watching all along;

The latest on the investigation into the Idaho case, where four college students were murdered, including exclusive interviews and chilling new details;

2015, Elmira, NY: A hockey player, Thomas Clayton, a brutal murder of Kelley Clayton, and a shocking witness --- the victim's young daughter.

When a mom is found dead in her luxury apartment, it isn't immediately clear whether it was a slip and fall or something more sinister happened;

This installment details the true-crime story of Nicole "Nikki" Addimando's shooting and killing of her domestic partner, Christopher "Chris" Grover on September 28, 2017 in Poughkeepsie, New York.

The 1998 death of Julie Jensen of Pleasant Prairie, Wisconsin, is investigated; the case included a letter, written by Jensen, that said suspicion should fall on her husband Mark, if anything happened to her;

Norfolk, Virginia: This installment outlines David Wayne Hoshaw Jr.'s 2007 double-murder of a mother, Vonda Goyena, age 74, and her daughter, Angelique Goyena, age 35. Three years after the murders, David Hoshaw pleaded guilty.

Instagram model Kelsey Turner's relationship with a 71-year-old psychiatrist, Dr. Thomas Burchard, turns deadly in 2019. She is convicted and sentenced to 10 to 25 years in prison.

News and analysis of the Murdaugh family murders of Paul and Maggie and the 2023 trial of Alex Murdaugh.

1998 Arlington, VA: James Christopher Johnson finds his fiancee Andrea Cincotta dead. Police force a confession from him after 28 hours of interrogation. 20 years later, he is indicted and found innocent. Bobby Joe Leonard pleads guilty.

A love triangle, a murder and arson -- an exclusive prison interview by ABC News Correspondent John Quiñones with Nikki Entzel, the woman at the center of the crimes who still claims she is innocent in spite of the overwhelming evidence.

A college student is murdered after being stalked; questions are raised regarding whether the university failed to protect her;

This installment details the 2014 murder of Robert Limon by his wife Sabrina Limon and her lover Jonathan Hearn.

St, Paul, Minnesota, April 25, 2010: This installment details the murder of Heidi Firkus by her husband Nicholas "Nick" Firkus.

Investigating the remains of victims found on the bottom of Lake Mead, NV as the reservoir water level drops due to drought. So far, Thomas Erndt, Claude Russell Pensinger and Donald P. Smith have been identified, submerged for decades.

Florida 1990: Marlene Warren was shot and killed by Sheila Keen Warren who was dressed as a clown to deliver balloons and flowers. Marlene's son witnessed the shooting. The case went cold for decades until it was solved by DNA in 2017.

Lubbock, Texas: Investigating the July 2012 "love triangle" murder-for-hire death of pathologist Joseph Sonnier by killers David Neal Shepard and Thomas Michael Dixon.

A serial killer's family member reveals shocking secrets that he kept to get away with murder;

One year after the tragedy in Uvalde, Texas, "20/20" follows the community's journey through horror and healing;

A Facebook message holds the clue to the two horrific murders of both Scott Sessions and Heather Frank.

Former Iron River Police Chief Laura Frizzo ran a tiny police force of only four officers in a tight-knit community in the Upper Peninsula of Michigan. She shares the story of the investigation of the 2014 death of Christopher Regan.

Kristin Smart, age 19, disappeared on Memorial Day Weekend 1996 from Cal Poly. For more than 25 years her family searched for answers and justice. Paul Flores was eventually convicted of her murder in 2023. Her body has never been found.

The investigation of the Gilgo Beach murders, featuring interviews with family members of the victims and key players in the case, including Suffolk County Police Commissioner Rodney Harrison and Suffolk County Defense Attorney Ray Tierney;

After a teen vanishes, the family searches for answers, but police see a suspect closer to home;

When 12-year-old Polly Klaas is snatched from her bedroom, the kidnapping shakes a small town.