On this day in 1978, a team of Oklahoma law enforcement agents arrested 34-year-old Gene Leroy Hart. Hart was the main suspect for the notorious Oklahoma Girl Scout Murders.

On this day in 1991, 11-year-old patient, Timothy Hardwick, was admitted to the hospital after suffering from epileptic seizures. He would die in the care of nurse Beverley Alitt only a few hours later.

On this day in 1966, the Buddhist uprising in South Vietnam reached a crucial turning point when Nguyen Cao Ky sent battalions of South Vietnamese Marines to quash the unrest in Da Nang.

On this day in 1996, the FBI arrested an infamous domestic terrorist at his cabin in the Montana wilderness. It was the culmination of a 17-year manhunt, for a man known as “The Unabomber.”

On this day in 1973, 11-year-old Wanda Walkowicz was sent to fetch groceries for her mother in Rochester, New York. Unfortunately, that afternoon, Wanda was the second victim in the gruesome and haunting, “Alphabet Murders.”

On this day in 1934, outlaws Bonnie Parker, Clyde Barrow, and Henry Methvin shot and killed two Texas highway patrolmen.

On this day in 1922, six people were murdered at a farmstead in southern Germany. It was a horrific event that would become one of the most infamous crimes in German history.

On this day in 1961, Judge Joseph Peel, a corrupt municipal judge in West Palm Beach, Florida, was found guilty for participating as an accessory to murder.

On this day in 2010, two suicide bombers attacked two different metro stations in Moscow, during rush hour, killing forty people.

On this day in 193 CE, Roman Emperor Pertinax was murdered by his treacherous bodyguards.

On this day in 1941, Japanese spy Takeo Yoshikawa arrived in Hawaii. He was a key figure in planning the surprise attack on Pearl Harbor later that year.

On this day in 1993, 16-year-old Rayna Rison disappeared after her shift at the local animal hospital. It would take two decades for her murder to be solved.

On this day in 1933, Erik Jan Hanussen was shot to death in the woods outside Berlin.

On this day in 1873, convicted serial killer Mary Ann Cotton was executed for fatally poisoning her stepson, Charles Edward Cotton.

On this day in 1994, presidential candidate Luis Donaldo Colosio was assassinated in Tijuana, Mexico.

On this day in 1971, the San Francisco Chronicle received a strange postcard. Reporters were quick to connect it to the serial killer who terrorized northern California from the mid-1960s through the early 1970s: The Zodiac Killer.

On this day in 1937, police in Ponce, Puerto Rico opened fire on a peaceful Nationalist parade. The resulting bloodshed killed at least 19 people and wounded around 200 more.

On this day in 1995, the Aum Shinrikyo cult killed 13 people when they released sarin, one of the deadliest nerve gases in the world, into the Tokyo subway system.

On this day in 1946, the murder trial of French doctor Marcel Petiot began in Paris.

On this day in 1980, 12-year-old Frank Gotti was run over by a neighbor as he played outside his home in New York City. But Frank was the youngest son of John Gotti—the future head of the Gambino crime family—and the mafia wouldn’t let the story end there...

On this day in 2010, David Cotton held up a bank in a suburb of Nashville, Tennessee wearing an unconventional disguise.

On this day in 1977, 11-year-old Timothy King vanished from his hometown of Birmingham, Michigan.

On this day in 44 BCE, Roman general and dictator Julius Caesar was assassinated by a cabal of rival Senators.

On this day in 2008, 9-year-old Shannon Matthews was discovered in a flat in Dewsbury, West Yorkshire, England. She had been missing for 24 days.

On this day in 1957, labor leader Jimmy Hoffa was arrested by the FBI on charges of bribery.