The undoing of Los Angeles County Sheriff Lee Baca, who resigned in January amidst multiple swirling scandals.

An undercover cop targets an autistic teen as a drug dealer.

A triple homicide, the alleged involvement of a Boston Marathon bombing suspect, and those caught up in the FBI’s ongoing investigation.

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

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

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

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.

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

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 rise of automatic number plate recognition and its real-world consequences.

The search for a disgraced ex-LAPD officer bent on killing his former colleagues and their families.

Manson at 79: in poor health and walking with a cane, obsessed with Vincent Bugliosi, willing to talk at length with a reporter for the first time in years, and visited every weekend by a 25-year-old woman he calls Star.

They advertise murder for hire but work for the government. Inside the world of America’s fake hit men.

A Hells Angel informant’s path from destruction to redemption and back, and a family’s trouble with witness protection.

On the online mug shot industry, which posts mug shots of anyone arrested (regardless of conviction) and charges $30 to $400 to have the photo removed.

On the fall of Ross William Ulbricht, the alleged creator of The Silk Road, a hidden black market website where users could buy and sell drugs, guns and, according to the FBI, the services of a hit man.

How a series of lies and an incompetent lawyer led to a Florida woman’s wrongful conviction.

How New York City built its own CIA.

A case of mistaken identity and the incarceration of an innocent man.

Unpacking a false confession 20 years later.

“The government calls it “Operation Open Market,” a four-year investigation resulting, so far, in four federal grand jury indictments against 55 defendants in 10 countries, facing a cumulative millennium of prison time. What many of those alleged scammers, carders, thieves, and racketeers have in common is one simple mistake: They bought their high-quality fake IDs from a sophisticated driver’s license counterfeiting factory secretly established, owned, and operated by the United States Secret Service.”

The mysterious life and death of Dow B. Hover, the man who ran New York’s electric chair.

The hunt for a secretive network of British men obsessed with accumulating and cataloguing the eggs of rare birds.

On the militarization of America’s police forces.