20/20

How Siegfried Fischbacher and Roy Horn rose to fame, survived the tiger accident and changed Las Vegas forever.

Daughter of Kansas woman who went missing found alive 15 years later; John Robinson, the conman; John Robinson goes to trial for three murders in Kansas

Dan Markel and Wendi Adelson's marriage falls apart in Florida; FBI tries to get more information on Markel's murder; Where Dan Markel murder case stands today

Dorothy Stratten's life and promising career are cut short when her estranged husband kills her.

Payton Leutner speaks out for the first time after two friends stabbed her and left her for dead in the woods of Waukesha, Wis., to prove themselves to a fictitious character known as "Slender Man."

A man is convicted of killing his 8-month-pregnant wife; a tip points to another suspect.

Mary Jo Buttafuoco, Joey Buttafuoco and their daughter Jessie reflect on their lives following Mary Jo's shooting in 1992.

When a University of Illinois scholar goes missing, a suspect's girlfriend works with the FBI to go under cover and secretly record a conversation that ultimately cracks the case.

Beth Holloway takes her first extensive trip back to Aruba in nearly ten years after her daughter, Natalee Holloway, disappeared while on vacation there almost 15 years ago.

Thirty years after she had learned that she was switched at birth, Kimberly Mays reveals the details about her tough childhood and her struggle with her identity; interviews with Kimberly's biological siblings, and her mother, Regina Twigg;

The life of disgraced mogul Lou Pearlman, including his role in one of the biggest Ponzi scheme in history, his blimp business, how he got involved in the boy band scene and how he led authorities on an international manhunt, which ended with his final destination to prison.

Interviews with Amanda Berry, Gina DeJesus, and Michelle Knight, who made headlines when they escaped their Cleveland kidnapper's home, after a decade of captivity.

Pamela Smart talks about the murder of her husband, for which she was sentenced to life in prison.

A couple preparing to sell their yacht to move closer to family – when they vanished forever. Investigators found that complete strangers to the couple were responsible.

A man kills his business partner and hatches an elaborate plan to cover it up.

Ted Bundy's longtime girlfriend and her daughter open up about their lives with him.

Details surrounding the Jodi Arias murder case, including excerpts from Arias' personal journal and victim Travis Alexander's blog, and new interviews with Alexander's friends and family.

The stars of the hit show look back at the best pitches, the biggest fights, and of course, the greatest money makers and those making the greatest impact with their businesses.

After spending almost 10 years behind bars for his former girlfriend's death death -- a crime he says he did not commit -- Nicholas McGuffin opens up after his conviction is overturned.

The extraordinary chain of events that led to a COVID-19 global health crisis.

The night a marijuana dispensary owner was kidnapped, tortured and maimed; Cortney Shegerian is the bait in a police plan to arrest Hossein Nayeri; Hossein Nayeri appeals to the jury in his own trial

Communities across US take drastic measures to slow spread of coronavirus; How prepared are we to test for the novel coronavirus; The 'new normal' of the coronavirus.

Decades after four bodies were discovered in New Hampshire's Bear Brook State Park, a podcast renews interest in the cold case and helps lead to authorities solving it.

Healthcare workers and medical professionals' extraordinary work on the frontlines, the latest developments on the COVID-19 pandemic and how hard the crisis is hitting the U.S.'s gig economy.

The chilling true crime story of a '85 Chicago Bears legend and the murder of his pregnant girlfriend.

The sting operation to catch a woman in a murder-for-hire plot is filmed for a reality-TV series.

Interviews with daughters of Karl Karlsen, who nearly got away with murdering his wife and son.

New details regarding the arrest of Ghislaine Maxwell, a longtime companion of the disgraced financier, and hear from the women who survived his crimes.

Julius Jones, who was convicted in the shooting death of an Oklahoma businessman at 19 years old, tells his version of events, claiming he is innocent, from death row.

In 2017, authorities reopen the investigation into the 1983 murder of a young Black man in Georgia.

Remembering the television pioneer, his life and his legacy as the legendary host of the "Live" morning franchise for 28 years.

An investigation into why the United States was unprepared for COVID-19, how government and administration officials failed and missed the warning signs, and what the country needs to do to reopen.

Exploring how the historic 1963 March on Washington for Jobs and Freedom began.

A 20-year-old U.S. Army soldier, Vanessa Guillen, is murdered inside a Fort Hood, Texas, armory by another enlisted soldier.

The ex-wife of former NBA player Lorenzen Wright pleads guilty to facilitating his murder.

Melanie McGuire insists she's innocent in husband's 2004 killing. Her trial captured the nation's attention after fishermen found her husband's legs in a suitcase.