A murder case in Los Angeles, cold since the late ’80s, heats up thanks to breakthroughs in forensic science and leads detectives to “one of the unlikeliest murder suspects in the city’s history.”

Maurice Spagnoletti was hired to clean up one of the island’s largest banks. He found fraud, waste, and executives performing Santeria rituals in the conference room. Then he was killed on his way home.

“I grew up idolizing my brother. Then he killed a man.”

A few months after working at Ground Zero, Kurt Sonnenfeld became a suspect in the mysterious and high-profile death of his wife. He got off, barely, and started a new life in South America. But when the U.S. tried to bring him back to face charges, Sonnenfeld went to the local media. The Feds didn’t want him for murder, he said. They wanted to put him away because of what he knew about 9/11.

Today, Robert Dowlut is the National Rifle Association’s top lawyer. Fifty years ago, he was convicted of murdering a woman with a handgun.

At first, Don Huckstep was perplexed that his fiancée would abruptly cut off contact before a long-awaited trip to Italy. Then a bizarre and grisly set of discoveries unfolded.

In the city of Rosario, some fans have evolved into a mafia with an illicit cash flow and a stable of hit men. A look inside their homicidal turf war.

After a murder in the California wilderness, the search for the killer raises complicated questions about mental illness.

The diner manager told the cook not to prepare the poached eggs a woman had ordered. The next day, the cook killed the manager. They had worked together amicably for 20 years.

A novel interrogation technique is transforming the art of detective work: Shut up and let the suspect do the talking.

Shot and killed just shy of his 18th birthday, Deonte Hoard was one of 489 homicide victims in Chicago last year. How this happened—and how it keeps happening—is both one person’s story and the story of how a community has been forced to adjust to murder as an everyday fact of life.

How America’s first serial killer terrorized the city of Austin on Christmas Eve, 1885.

A murder involving one of the India’s celebrity couples has mesmerized the country and exposed some of its darkest fears.

Part 1 of “The Mastermind,” a serialized investigation of Paul Le Roux, who went from brilliant programmer to vicious cartel boss to highly protected U.S. government asset.

How two love-struck, type A high schoolers almost got away with murder.

In 1980, four American nuns were murdered in El Salvador. This is the story of how a young American official stationed there singlehandedly found the culprits.

Excerpted from Weakness and Deceit: America and El Salvador's Dirty War

Decades after the body of beauty queen Irene Garza was pulled from an irrigation canal, there is still only one suspect: John Feit, the priest who heard her final confession.

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.

The mysterious death of a champion Irish setter.

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.

Last February, John Jonchuck Jr. dropped his 5-year-old daughter off a bridge to her death. This is the story of what happened, and what didn’t, in the years before the murder made headlines.

Vengeance, abuse, and the strange double standards of death penalty politics.

In 1993 a black teenager in London was randomly stabbed to death by a gang of white youths. Twenty years later, they would be at the center of the trial of the decade.

Thirty years ago, Elizabeth Haysom and Jens Soering fell in love as freshman at the University of Virginia. It was the same year Haysom’s parents were brutally murdered. Each says the other committed the crime.

Dorothy Stratten was the focus of the dreams and ambitions of three men. One killed her.