How a disgraced principal-turned real estate mogul helped cause the global financial crisis.

In 1995, Ramirez allegedly raped Patricia Esparza. He was tortured and killed weeks later. Now she’s charged with his murder. Is she responsible?

A respected anti-gang crusader shoots and paralyzes another man.

Jeffrey Holliman was deep in debt and out of options. So he took to the woods outside his small East Texas town. Then he started taking from his neighbors.

After eight women are murdered in Louisiana, what was initially thought to be the work of a serial killer becomes something much more troubling.

“‘When I heard the facts,” says Matt Kull, one of DiPaolo’s former climbing partners, “I thought, That’s what Dave is capable of.’”

A murder involving the late actor leaves unanswered questions.

How a once-lauded psychiatrist became a prolific prescriber of painkillers in one of Virginia’s poorest and most isolated counties.

On hit-and-run deaths, and in particular, that of Tiara Nichelle Jackson on the Beltway.

On then-agent, now-congressman Michael Grimm and what happens when an F.B.I. informant turns out to be a con man.

An oral history project involving former IRA members becomes a prolonged court battle over a four-decade-old murder.

How a 40-year-old IT consultant became nod, one of Silk Road’s highest volume heroin dealers, who turned informant and then fugitive.

Meggett was an All-Pro running back for the New York Giants. He was also a serial rapist.

To his friends and family, Ross Ulbricht was a compassionate, warm soul known for random acts of kindness. To the F.B.I., he was Dread Pirate Roberts, the mastermind behind the Silk Road who was willing to order hits to protect his black market operation.

“There is only one given: On the afternoon of August 16, a 22-year-old from Australia named Christopher Lane, who had come to America to go to college and play baseball, went out running and, without warning or knowing why, was shot to death in Duncan.”

What happened when 21-year-old Taiwan Smart became the target of both police and a reality TV show.

How a rogue p.r. man pulled a fast one on professional hockey.

The case of Gilberto Valle, “The Cannibal Cop,” and the line between criminal thoughts and action.

Searching for the alleged Kazakh Bernie Madoff.

How a self-taught doctor from Delhi cornered the black market in kidneys, building one of the world’s most lucrative organ-trading rings, until it all came crashing down.

Allegations of child sexual and Satanic ritual abuse overtake an Austin suburb.

Seventeen-year-old Israel Arenas Durán disappeared after being arrested near his home in Nuevo León. He is one of more than 25,000 who have gone missing in Mexico since 2006.

The FBI couldn’t find Ryan Eugene Mullen. Neither could a trio of private investigators. Only Michelle Gomez knew where to look.

Investigating the murder of a Costa Rican conservationist.

Unraveling a lucrative crime ring.