Crime fiction is the literary genre that fictionalises crimes, their detection, criminals and their motives. It is usually distinguished from mainstream fiction and other genres such as science fiction or historical fiction, but boundaries can be, and indeed are, blurred. It has several sub-genres, including detective fiction (such as the whodunnit), legal thriller, courtroom drama and hard-boiled fiction.

While the archetype for a murder mystery dates back to "The Three Apples" in the One Thousand and One Nights, crime fiction began to be considered as a serious genre only around 1900. The earliest known crime novel is "The Rector of Veilbye" by the Danish author Steen Steensen Blicher, published in 1829. Better known are the earlier dark works of Edgar Allan Poe (e.g., "The Murders in the Rue Morgue " (1841), " The Mystery of Marie Roget " (1842), and "The Purloined Letter" (1844). Wilkie Collins' epistolary novel The Woman in White was published in 1860, while The Moonstone (1868) is often thought to be his masterpiece. French author Émile Gaboriau's Monsieur Lecoq (1868) laid the groundwork for the methodical, scientifically minded detective. The evolution of locked room mysteries was one of the landmarks in the history of crime fiction. The Sherlock Holmes mysteries of Arthur Conan Doyle are said to have been singularly responsible for the huge popularity in this genre. A precursor was Paul Féval, whose series Les Habits Noirs (1862–67) features Scotland Yard detectives and criminal conspiracies.

Elmore John Leonard Jr. (born October 11, 1925), better known as Elmore Leonard, is an American novelist and screenwriter. His earliest published novels in the 1950s were westerns, but Leonard went on to specialize in crime fiction and suspense thrillers, many of which have been adapted into motion pictures.

Among his best-known works are Get Shorty, Out of Sight, Hombre, Mr. Majestyk and Rum Punch, which was filmed as Jackie Brown. Leonard's short stories include ones that became the films 3:10 to Yuma and The Tall T, as well as the current TV series on FX, Justified.

Leonard was born in New Orleans, but because his father worked as a site locator for General Motors, the family moved frequently for several years. In 1934, the family finally settled in Detroit. Leonard has made the Detroit area his home ever since.

In the 1930s, two major events occurred that would influence many of his works. Gangsters such as Bonnie and Clyde were making national headlines, as were the Detroit Tigers baseball team. From about 1931 until they were killed in May, 1934, Bonnie and Clyde were on a rampage. The Tigers made it to the World Series in 1934 while winning it in 1935. Leonard developed lifelong fascinations with both sports and guns.