The St. Valentine's Day massacre is still unsolved

Valentine's Day's namesake is unclear

Valentine, which means "powerful" or "worthy," was a popular name in the Roman Empire. Considering that, it's no surprise that there's more than one St. Valentine. In fact, three different men named Valentine were martyred on February 14, and none of them, despite some unproven legends, were ever associated with love or romance.

Searching for a hate crime's unknown victim

In 2004, two federal agents heard a rumor: two white men, one under investigation for an unrelated crime, had gotten away with killing a Black man 15 years earlier as a requirement to join a white supremacist group. One of the men confessed to the crime, though he didn't know who was killed. This series dives into the search for the slain man and the justice he deserved.

The dark origins of Valentine's Day.

The holiday began as a feast to celebrate the decapitation of a third-century Christian martyr, or perhaps two. So how did it become all about love?

How tax laws helped the federal government catch mob bosses during Prohibition

The IRS arrested top mob bosses during Prohibition after the Supreme Court ruled illegally-made income could be taxed. The IRS's biggest catch was Al Capone, who was charged with tax evasion and sentenced to 11 years in prison. But Capone wasn't the only bootlegger the IRS nabbed for tax evasion during this era.

Al Capone's business structure kept him from ever getting charged for bootlegging.

Moss provided the evidence to convict Chicago cemetery grave robbers

In 2009, employees at Burr Oak Cemetery were accused of exhuming graves to resell burial plots, but they argued the events took place before their employment. An analysis of moss, whose metabolic activity deteriorates at a known rate, with the transported human remains helped establish a timeline that placed the accused at the crime scene.

The 1919 Chicago White Sox, later known as the 'Black Sox,' were banned from baseball for fixing that year's World Series despite being acquitted in court.

Some believe Valentine's Day evolved from the Roman holiday Lupercalia

The festival, which took place in mid-February, featured Roman priests sacrificing a goat and using its hide to lightly slap women and the land, believing it would bring fertility. Some believe that the Catholic Church repurposed the pagan holiday as a Christian one by attaching it to a saint, but scholars are not certain that this is true.

Often dubbed the 'king of bank robbers,' George Leonidas Leslie stole an estimated $7M (equivalent to $200M today) and charged other criminals a $20K fee to evaluate their heist plans

Leslie studied architecture and used blueprints of safes and banks to execute meticulously planned bank heists across the Northeast between 1869 and 1878. Although Leslie was an infamous bank robber by night, he posed as a member of high society by day, providing critical intel on the institutions he'd rob and helping conceal his crimes. Months before his largest planned heist, where he planned to turn on his gang, Leslie's body mysteriously washed up along the Hudson River. His killer remains a mystery.

Individuals have been convicted of ordering assassinations from the dark web

Researchers have uncovered online storefronts allegedly run by members of various mafia or hitmen that offer to harm or murder individuals in exchange for monetary payment. However, no known murder has been attributed to any of them, and cybercrime task forces believe them to be scams (warning—sensitive content).

Who was behind the fatal 1982 Tylenol poisonings?

In 1982, an unknown suspect laced Tylenol packages with potassium cyanide in a Chicago pharmacy. Seven people were killed, and the case led to a nationwide panic, as well as the development of tamper-resistant packaging. No one was ever charged with the deaths, and the lead suspect died in 2023 after serving time in prison for trying to extort $1 million from a manufacturer to "stop the killing."

Conspiracy theories persist around Dr. Martin Luther King Jr.'s 1968 assassination

Despite multiple investigations—including FBI inquiries and a 1979 House committee report—questions and conspiracy theories have continued to surround the 1968 assassination of Dr. King long after his assassin’s conviction.

English playwright Christopher Marlowe's violent and mysterious death

According to an official coroner’s report, in 1593 a heated argument over payment for supper escalated into a physical struggle, during which Marlowe wounded a man named Ingram Frizer, who then fatally stabbed Marlowe above the right eye. Though we still don't have a definitive explanation for why Marlowe was killed, the true motive continues to be debated, with suspicions surrounding the official account. Read more here.

There's a myth that Al Capone coined the term 'money laundering,' or the process of disguising the criminal origins of illegally obtained money so it can be used without detection.

The Foolkiller: the mysterious submarine at the bottom of the Chicago River.

In November 1915, a submarine was found at the bottom of the Chicago River. It had been there for at least 10 years, was 40 feet long, and contained the remains of a man and his dog. To this day, no one knows who built it.

Two men dressed as cops stole artwork from a Boston museum valued at over $500M at the time

On March 18, 1990, the thieves entered Isabella Stewart Gardner Museum pretending to be police officers responding to a disturbance. After overpowering and handcuffing the guards on duty, they stole 13 precious items, including works by Rembrandt and Manet. The theft is the largest art heist in US history. The pieces are still missing, and the museum is offering a $10M reward to anyone who provides valuable information about their location.

Abraham Lincoln's missing bodyguard

The night President Abraham Lincoln was shot, his bodyguard John Frederick Parker was late for his shift—and reportedly left his post to drink at the bar. Infamous assassin John Wilkes Booth entered the booth at Ford's Theater where the president sat while Parker was absent, leading to one of the United States' greatest political tragedies. Read more about the troubled history of Parker here.

The FBI's most famous cases

From the D.B. Cooper plane hijacking to the kidnapping of Frank Sinatra Jr. to the details about the first FBI agent killed in the line of duty, this FBI archive overviews the agency's most famous cases. Cases are organized by investigative priorities, according to the agency. Clicking any of the linked investigations takes readers to detailed articles about the cases, some of which remain unsolved.

Get to know the five families that ran the NYC mafia

In the 1900s, there were five families in New York City who dominated the crime scene. These five families organized expansive criminal operations—ranging from prostitution and price extortion to money laundering—and have inspired stories like "The Godfather."

The unsolved murder case of Martha Moxley and the overturned conviction of a Kennedy cousin

Moxley was murdered in 1975, and the case went cold for a quarter of a century until Michael Skakel—a young relative of the Kennedy clan—was convicted of the murder. Eleven years into his sentence, Skakel's conviction was overturned, prompting a new set of questions.

The mysterious details of Stalin's death

The 73-year-old dictator of the Soviet Union died March 5, 1953, officially from a stroke, on top of nearly a decade of significant medical issues. But evidence suggests the longtime leader might have been poisoned less than a week before at an intimate gathering of Stalin's closest confidantes and advisors. Explore the current evidence for Stalin's alleged murder here.

Albert Camus died in a car crash, an act some believe was orchestrated by the KGB.

When police raided New York's Stonewall Inn, a well-known gay bar, in 1969, patrons resisted, leading to 6 nights of protests that would eventually inspire modern Pride celebrations.

The best Valentine's Day-themed horror movies

It may seem like an odd combination—a holiday centered on love and a film genre dedicated to fright—but the hyperspecific subgenre thrives on the apparent juxtaposition, along with some campy send-ups of an overly commercialized holiday.

Why ‘Shoeless Joe’ Jackson was banned from Major League Baseball

Few baseball stars are more infamous than "Shoeless Joe" Jackson, one of the game's greatest hitters. Jackson was part of the Chicago White Sox team (notoriously dubbed the "Black Sox") accused of fixing the 1919 World Series. This resource breaks down the criminal trial that investigated those allegations. Curiously, Jackson and his teammates were acquitted, but Major League Baseball commissioner Judge Kenesaw Mountain Landis still banned them from the league for life.

A lost Jack Kerouac story was discovered in the belongings of a gunned-down mob boss

The unpublished "The Holy, Beat, and Crazy Next Thing" was found in the belongings of Paul Castellano, who was murdered in 1985. It's unclear why Castellano had it, though an heir says it was originally in the collection of a "noted San Francisco-based poet...who received it directly from the author."

The inside story of the 1969 murder of coal union leader Jock Yablonski

In 1969, Jock Yablonski challenged the longtime president of the United Mine Workers, Tony Boyle. On New Year's Eve of that year, Yablonski, his wife, and their daughter were brutally murdered in their beds.

Taliesin’s first fire also involved the tragic murder of seven people

In 1914, while Frank Lloyd Wright was out working in Chicago, one of his servants at Taliesin brutally murdered his mistress, Martha “Mamah” Borthwick Cheney, her two children, and three other people in the home. The massacre left a deep impression on Wright, who spent much of his career restoring the home.

'The Chinatown Sting': Unraveling an international drug smuggling ring

In the late 1980s, a group of women connected through the mahjong parlors in Manhattan's Chinatown were caught in a massive undercover drug bust. But this bust was just the beginning of an even bigger case.

Lincoln was assassinated by a well-known actor, who originally planned to kidnap him

On April 14, 1865, actor John Wilkes Booth shot President Abraham Lincoln at Ford's Theatre in Washington, DC. Booth had initially conspired to kidnap Lincoln but turned to assassination after the Confederacy's defeat.

Poet Geoffrey Chaucer inspired the modern, romantic version of Valentine's Day

In the 1380s, the "Canterbury Tales" author wrote "The Parliament of Fowls," a 700-line poem about birds that choose their mates on St. Valentine's Day. The poem argued that romantic love—for fowls and humans alike—was an ideal, and linked the holiday with that sentiment.

Murder rates spiked in the US after COVID-19, and then declined in 2023

Criminologist and former investigator Jillian Peterson says whether a murder is solved in the US is nearly up to the flip of a coin, with the clearance rate for murder cases being about 50%. The US, which has more guns than citizens, has about roughly five gun homicides per 100,000 residents, resulting in the 28th-highest rate of deaths from gun violence compared to the rest of the world.

Check out Valentine's Day traditions from around the world

Valentine's Day is a holiday all about romance, but the way that's expressed differs depending on where the celebration takes place. This list breaks down some interesting takes on the holiday from across the globe, including mass weddings in the Philippines and Japan's gender-specific chocolate exchanges.

The story behind one infamous World Series moment

“The Bartman Incident” during Game 6 of the 2003 NLCS forever changed the life of Cubs fan Steve Bartman, who quickly descended into anonymity. This 2005 ESPN story attempts to find answers behind the notorious Bartman.

When America's deadliest serial killer went undetected

Samuel Little, who, for years, washed in and out of the justice system on violent charges eroded into lesser offenses, ultimately admitted to killing 93 people, mostly women, over more than 30 years. He tended to target those on the fringes of society—runaways, drug users, sex workers—people whose deaths were more likely to go unnoticed, he remarked, referring to them as fruits to be plucked at will.

The FBI investigated John Steinbeck, believing he might be a communist.

The devil went down to Georgia

For years, a mysterious figure preyed on gay men in Atlanta. People on the streets called him the Handcuff Man, but the police knew his real name. It wasn't until a dogged local news reporter interviewed the underground community of male sex workers that local officials were prompted to intervene in the killer's reign of terror.

The first MLB All-Star Game was designed by a sports journalist who believed the spectacle would boost baseball's reputation during the Great Depression.

19th-century 'vinegar valentines' sometimes mocked recipients

In Victorian England, cards were sent to paramours and crushes, but they were also sometimes sent to people the sender disliked and would belittle them for their occupations or appearances. It was also expected that anyone who received a Valentine's Day card would send one in return, so there was a subgenre of responses, including rejections for unwanted suitors.

Unraveling the Long Island serial killer case

Authorities investigating the disappearance of a woman from Long Island in May 2010 soon discovered four bodies that had been dumped nearby. Six more bodies were found in the same area in early 2011, and authorities announced later that year that all the deaths were the work of one person. This episode is the first in a seven-part series into Gilgo Beach slayings and their seemingly bungled investigation.

In July 1979, tens of thousands of people rioted on the Chicago White Sox field during 'Disco Demolition Night,' a promotional event that advertised the public burning of the genre's hit records.

The betting scandal that rocked college basketball

In the 1940s and '50s, illegal bookmaking in college basketball was rampant at Madison Square Garden. In the 1949-50 season, City College of New York players shaved points during games, though they played honestly in the NIT and NCAA tournaments, winning both. This OddsShark.com article explores how the points-shaving scandal was exposed, who went to jail, and its impact on the NIT and CCNY.

Irish immigrants deserted the US Army to fight for Mexico

During the Mexican-American War, hundreds of Irish Catholic immigrants—facing discrimination in the US Army—defected to Mexico and formed the Saint Patrick’s Battalion. Though many were captured and executed, they remain honored as heroes in Mexico.

The average person celebrating Valentine's Day spends $189

That might include dinner, flowers, or something even more romantic. The most popular gift is candy, with 56% of people celebrating the holiday by purchasing sweets. That's about $2.5B in sales.

A detective foiled an assassination plot against Lincoln before his inauguration

In February 1861, detective Allan Pinkerton uncovered a plot to kill Abraham Lincoln en route to his inauguration. Lincoln secretly altered his travel plans and sneaked into Washington DC to take the oath of office. Pinkerton later founded the well-known Pinkerton's National Detective Agency.

'Bonnie and Clyde,' the 1967 film starring Warren Beatty and Faye Dunaway, was the first major American movie to feature graphic violence.

Director Arthur Penn used the then-new Squibb technology, which triggered realistic and bloody bullet wounds, to portray graphic violence, at the time a taboo in American cinema.

Years before the 1969 Stonewall Uprising, patrons at another New York bar staged a protest against an antigay liquor law.

In the 20th century, Valentine's Day became more commercialized

Historian Elizabeth Nelson notes that companies sought "to turn holidays into opportunities for selling things from candy to flowers to magazine advertisements" in the 1900s. Hallmark, founded in 1911, pushed the holiday toward elementary students, who aimed to collect cards from as many classmates as possible.

Abraham Lincoln had to sneak into Washington, DC, in disguise for his 1861 inauguration after a detective uncovered a plot to assassinate him in Baltimore.

There were dozens of attempts to assassinate Hitler—most famously Operation Valkyrie in July 1944

Across his reign, Hitler survived at least 40 plotted and actual assassination attempts, ranging from lone actors in beer halls to organized military conspiracies. The most notable, Operation Valkyrie on July 20, 1944, led by Colonel Claus von Stauffenberg, planted a bomb at the Wolf’s Lair in an effort to kill Hitler and overthrow the Nazi regime. Though the explosion injured several, Hitler escaped with minor wounds, prompting a brutal purge of conspirators.