Lyle Menendez speaks from behind bars to Chris Cuomo, more than 25 years after he and his brother Erik were convicted of first degree murder.

Authorities search for missing mother of two, Susan Powell, in every nook and cranny of the desert in Western Utah while her friends and family wait for a break in the case. Her husband Josh is named a person of interest as suspicion about his involvement in her disappearance grows. He and his father wage a counter-attack and a war between Susan and Josh's families erupts in the glare of the public spotlight. Shocking revelations about Josh and his family come to light--evidence of violence, obsession and sexual perversion. The family drama leads up to a shocking and unimaginable conclusion.

David Kaczynski, the brother of convicted Unabomber Ted Kaczynski, discusses the hunt that led to the capture of his infamous sibling.

In the dark hours of June 23, 1993, in Manassas, Virginia, a man lies fast asleep on his bed, while a woman looms over his prone body with a kitchen knife and proceeds to slice off his manhood. A stunning end to the broken marriage of Lorena and John Bobbitt, but what outrageous situation led two young people to a horrifying silent scream in the night?

HLN highlights the shocking motive that turned these brothers into killers.

Deborah Jean Palfrey threatened to expose names on her client list and was found hanging on her mother's property.

Susan Powell, a 28-year-old mother of two, goes missing in December of 2009. Her husband Josh claims to have taken their two young sons winter camping in the Utah desert and says he returned the next day to find her gone. Questioned by detectives, he doesn't behave like a concerned husband and his version of events doesn't match his son's. The mystery about where Susan's is deepens as more details about her marriage to Josh and their life behind closed doors emerge. Susan's family and friends do everything they can to find her while Josh insists that she ran out on him and their two little boys. The search for Susan Powell plays out on a national stage with everyone wondering: did she run off? Was she taken? Is Susan Powell dead or alive?

Aviation experts revisit the accident and share what exactly happened.

The chilling account of a man who survived his encounter with the notorious serial killer, who managed to evade police scrutiny for years.

On January 26th, 2020, Kobe Bryant's helicopter crashed, killing all people on board.

Revelations of what Michael Jackson's children and staff witnessed prior to his death and an investigation into the claims that Jackson took his own life.

Heath Ledger's death is examined.

They were well-known and well-liked Dartmouth College professors. But on January 27th 2001, Half and Suzanne Zantop's incredible lives came to a shocking and unforeseeable end: found brutally murdered in their remote Hanover, New Hampshire home. The double killing quickly became national news. Who would commit such a heinous act, and more importantly, why? With few leads and few clues at the get-go, investigators were stumped. But some good old fashioned police work would lead detectives to a small town just across the border in Vermont--where they found an incredibly unexpected twist to this 'whodunit' mystery.

The aftermath of the investigation into the murder of JonBenet Ramsey.

The news of Bernie Madoff's arrest sent shockwaves around the world. His staggering crime affected thousands of victims, including charities, universities, celebrities and even Madoff's own family and friends. How did he do it? Why did he do it? Did he have any help? Investigators were about to unravel a scheme that went back decades and involved several loyal employees.

Uncovering Prince's secret struggles from his earlier years to the final days leading up to his shocking death.

Uncovering how Anna Nicole Smith's lavish lifestyle may have contributed to her mysterious death.

Revelations of what Michael Jackson's children and staff witnessed prior to his death.

Investigating a wide range of suspects and evidence in the killing of JonBenet Ramsey.

Examining the factors that led to the crash that killed John F. Kennedy Jr. and a never before seen interview with a person who may have been the last person to speak to JFK Jr, moments before the crash.

Bernie Madoff was a legend on Wall Street. He helped create Nasdaq, served as its chairman, and operated a highly successful brokerage firm. But at the same time, Bernie Madoff was also running a secret hedge fund, a fund known only by word of mouth. As news spread about Madoff's steady returns, some of the wealthiest people were begging Bernie Madoff to invest their money. Billions of dollars were pouring in from around the world. But in 2008, when the financial crisis hit and Madoff's investors began demanding their money back, Madoff knew he wouldn't have enough to pay them. He finally confessed to his sons that he had been living a lie--that his investment business was nothing more than a multi-billion-dollar fraud - the largest Ponzi scheme ever.

Examining the factors that led to the crash that killed John F. Kennedy Jr. and a never before seen interview with a person who may have been the last person to speak to JFK Jr, moments before the crash.

A look at new details surrounding Whitney Houston's last days and her tumultuous relationship with Bobby Brown.

Two dangerous killers break out of one of New York State's toughest prisons. Convicted murderers Richard Matt and David Sweat cut through steel walls, crawl through steampipes, and snake their way through a maze of tunnels on their way to freedom. When authorities discover the details of their elaborate escape - there are more questions than answers. Who are these men? How did they mastermind their plan? And can they capture them before they kill again?

New theories emerge in the O.J. Simpson case, including a serial killer's confession, a possible hit man who claims responsibility for the murders.