How a traveling medical technician managed to steal narcotics from hospitals, infecting at least 45 people with hepatitis C in the process.

She was the daughter of movie mogul Harry Warner. He was 15 years younger and embezzled her money, landing himself in jail. In prison, he offered a young inmate named Richard Matt $100,000 to kill her.

Ken Dornstein’s older brother died when a bomb exploded on Pan Am Flight 103. For the past three decades, he’s been obsessed with identifying who’s really responsible.

She was a young plutonium worker whose Honda Civic Hatchback ran off the road and smashed into the wall of a concrete culvert. In her trunk were manila folders full of documents, which immediately went missing.

In 2006, Alexander Litvinenko, a former Russian spy working for British intelligence, was poisoned. As he lay dying, he worked with detectives to find his killer.

The mysterious death of a champion Irish setter.

Asunta Fong Yang was adopted as a baby by a wealthy Spanish couple. Aged 12, she was found dead beside a country road. Not long after, her mother and father were arrested.

Eight of serial killer John Wayne Gacy’s victims remained a mystery, 35 years after his conviction. One man made it his mission to identify them.

How a 24-year-old nurse discovered Vegas, high-stakes gambling, and serial bank robbery.

In 1948, a man was found on a beach in South Australia. The circumstances of his death and his identity were rich with mystery. When an amateur sleuth became obsessed, he could not imagine where the clues would lead him.

A profile of the Waffle House terrorists, a group of senior citizens arrested by the Department of Homeland security for plotting a civil war, and the government-hired confidential informant who allegedly led the group astray.

On solitary confinement:

"Two or three hundred years from now people will look back on this lockdown mania like we look back on the burning of witches."

There was torture, starvation, betrayals and executions, but to Shin In Geun, Camp 14—a prison for the political enemies of North Korea—was home. Then one day came the chance to flee.

Twenty-one-year-old Briton Lucie Blackman came to Tokyo and found work in the Roppongi district hostess bars, where businessmen come to flirt with paid companions, and Western women draw a premium fee. Two months later, she disappeared. She would be found underneath a bathtub in a beachside cave.

In the remote wilderness along northern British Columbia’s Highway 16, at least 18 women have gone missing over the past four decades. Is it the work of a serial killer or multiple offenders?

John MacNeil was convicted by the state of Massachusetts of second-degree murder. He was given a life sentence. He escaped. He was caught. Through an incredible feat of jailhouse lawyering, he somehow got himself paroled and exiled to Canada. Then he came home.

When U.S. customs law met abstract art in the form of a bird, “shimmering and soaring toward the ceiling while the lawyers debated whether it was an ‘original sculpture’ or a metal ‘article or ware not specially provided for’ under the 1922 Tariff Act.”

In 2008, a Brooklyn cop grew gravely concerned about how the public was being served. So he began carrying a digital sound recorder, secretly recording his colleagues and superiors.

In 2005, the prisoner who had set the U.S. penal system record for years in solitary confinement was moved to what’s called “the Alcatraz of the Rockies”—a jail in Colorado built just for him.

What’s Madoff like as a prisoner? According to his fellow inmates, he’s cheap (“You couldn’t get an ice-cream cone off him”), he’s unrepentant (“Fuck my victims”), and he’s eager to dole out financial advice.

A conversation with NYU Law Professor Philip Alston on the legality of ‘targeted killings’ by drones, which have made headlines in Pakistan, but also have been deployed by the C.I.A. in countries like Yemen.

After two New Jersey homes were robbed of their silver—only their silver—in the same night, the local police got a call from a detective in Greenwich, Connecticut. “I know the guy who’s doing your burglaries.”

The night the doctor behind the Scarsdale Diet was shot by his mistress, the impeccable headmistress of the elite all-girls boarding school Madeira.

In 1992, Anthony Graves was arrested for brutally murdering a family in the middle of night. He had no motive. There was no physical evidence. The only witness recanted. And yet Graves remains behind bars.