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.

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.

The fateful Titanic shipwreck of 1912 intertwines with a recent underwater OceanGate voyage that cost more human lives. Interviews with historians, wreck analysts, and descendants of Titanic passengers shed light on both tragedies.

Recent scientific advances have uncovered new secrets around the Titanic sinking, challenging previous notions about the ship's fate. This chapter continues to analyze the wreck and a recent underwater expedition that claimed more lives.

In the summer of 1996, a bombing at the Atlanta Olympics killed two and injured over 100; an intense manhunt ensued, with the media and law enforcement falsely accusing security guard Richard Jewell as a suspect.

Interviews with former special agents, journalists, and Richard Jewell's associates provide insight into the case and its aftermath; subsequent bombings over the next eighteen months led investigators to suspect a serial bomber in Atlanta.

On September 29, 1982, seven Chicago-area residents were suddenly stricken with a deadly illness. At first doctors were at a loss, but they soon discovered a sinister connection: all the victims had recently taken cyanide-laced Tylenol capsules. This launched an investigation that has lasted over four decades and forever changed the way medications and other goods are packaged in stores. This episode features interviews with family members of the victims, law enforcement who were first responders on that day, medical examiners and investigators on the case.

On July 5, 1998, a wealthy widow named Irene Silverman disappeared from her New York City townhouse. While police went on a frantic search for her, they had no idea the investigation would unravel one of the most shocking series of crimes they had ever seen – a trail of violence and fraud that stretched from the Bahamas to Los Angeles perpetuated by Sante and Kenny Kimes. This episode features interviews with Sante Kimes's son Kent Walker, Sante Kimes's attorney, NYPD officers who worked the case, and a journalist taken hostage by Kenny Kimes in prison.

When Iranian students stormed the US Embassy in Tehran in November 1979, they took the Embassy staff hostage and held them for 444 days. Only a handful managed to escape, but they were trapped in Iran until the CIA came up with a daring plan to bring them home. This top-secret mission was the subject of the Academy Award-winning film Argo. In this episode, several former hostages detail their time in captivity, and three of the Tehran Six escapees tell of their daring rescue.

On September 29, 1982, seven Chicago-area residents were suddenly stricken with a deadly illness. At first doctors were at a loss, but they soon discovered a sinister connection: all the victims had recently taken cyanide-laced Tylenol capsules. This launched an investigation that has lasted over four decades and forever changed the way medications and other goods are packaged in stores. This episode features interviews with family members of the victims, law enforcement who were first responders on that day, medical examiners and investigators on the case.

On July 5, 1998, a wealthy widow named Irene Silverman disappeared from her New York City townhouse. While police went on a frantic search for her, they had no idea the investigation would unravel one of the most shocking series of crimes they had ever seen – a trail of violence and fraud that stretched from the Bahamas to Los Angeles perpetuated by Sante and Kenny Kimes. This episode features interviews with Sante Kimes's son Kent Walker, Sante Kimes's attorney, NYPD officers who worked the case, and a journalist taken hostage by Kenny Kimes in prison.

When Iranian students stormed the US Embassy in Tehran in November 1979, they took the Embassy staff hostage and held them for 444 days. Only a handful managed to escape, but they were trapped in Iran until the CIA came up with a daring plan to bring them home. This top-secret mission was the subject of the Academy Award-winning film Argo. In this episode, several former hostages detail their time in captivity, and three of the Tehran Six escapees tell of their daring rescue.

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.

The aftermath of the investigation into the murder 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.

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

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

Heath Ledger's death is examined.

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

In 2008, two-year-old Florida toddler, Caylee Anthony, vanishes. Her mother, Casey Anthony tells investigators Caylee has been kidnapped by her nanny, a woman Casey's family has never actually seen. But why?

In 2008, two-year-old Florida toddler, Caylee Anthony, vanishes. Her mother, Casey Anthony tells investigators Caylee has been kidnapped by her nanny, a woman Casey's family has never actually seen. But why?

An investigation into the murder of fashion designer Gianni Versace, who was gunned down in broad daylight on the steps of his Miami Beach mansion by Andrew Cunanan in 1997.

In the mid-1970s, hundreds of people began disappearing without a trace. Families were left wondering about their loved ones for decades until shocking news about a mysterious religious group made headlines around the world.