John Wayne Gacy (March 17, 1942 – May 10, 1994) was an American serial killer and sex offender who raped, tortured and murdered at least thirty-three young men and boys between 1972 and 1978 in Norwood Park Township, a suburb of Chicago, Illinois. He became known as the "Killer Clown" due to his public performances as a clown prior to the discovery of his crimes.

Bernard Pesquet (18 March 1922 – 10 May 2009), known as The Landru of Val-d'Oise, was a French serial killer who killed at least six people between 1941 and 1976. Spending a total of 53 years behind bars, he was sentenced to life imprisonment for the latter murders, dying in prison in 2009.

Stephen Grover Cleveland (March 18, 1837 – June 24, 1908) was the 22nd and 24th president of the United States, serving from 1885 to 1889 and from 1893 to 1897. He was the first U.S.

Oliger (Holger) Paulli (18 March 1644 – August 1714), also spelt as Olliger Paulli, was a wealthy Danish merchant from an influential family, pamphleteer, religious fanatic, and publisher. He was renowned for his over-zealous activities for the return of Jewish people to their promised holy land.

Sofia Ivanovna Zhukova (Russian: Софья Ивановна Жукова; 1939 – 29 December 2020) was a Russian serial killer who committed three murders between 2005 and 2019. At the time of her last crime, she was 80 years old, making her the oldest serial killer in the history of Russia and the Soviet Union.

James DeWolf (March 18, 1764 – December 21, 1837) was an American slave trader and politician. He served as a state legislator for a total of nearly 25 years, and in the 1820s served as a United States senator from Rhode Island.

Stephen Decatur Richards (March 18, 1856 – April 26, 1879), known by the nicknames The Nebraska Fiend and The Ohio Monster, was an American mass murderer, outlaw, and serial killer who committed nine to twelve murders in Nebraska and Iowa between 1876 and 1878.

Fred Waldron Phelps Sr. (November 13, 1929 – March 19, 2014) was an American minister and disbarred lawyer who served as the pastor of the Westboro Baptist Church, worked as a civil rights attorney, and ran for statewide election in Kansas.

Randy Steven Kraft (born March 19, 1945) is an American serial killer and rapist known as the Scorecard Killer, the Southern California Strangler, and the Freeway Killer, who committed the rape, torture, and murder of a minimum of sixteen young men between 1972 and 1983, the majority of whom he killed in California. Kraft is also believed to have committed the rape and murder of up to fifty-one other young men and boys.

Zhang Zuolin (March 19, 1875 – June 4, 1928) was a Chinese warlord who ruled Manchuria from 1916 until his assassination in 1928. He led the Fengtian clique, one of the most powerful factions during the Warlord Era.

Ignazio Lupo (Italian: [iɲˈɲattsjo ˈluːpo]; March 21, 1877 – January 13, 1947), also known as Ignazio Saietta and Lupo the Wolf, was a Sicilian American Black Hand leader in New York City during the early 1900s. His business was centered in Little Italy, Manhattan, where he ran extensive extortion operations and committed other crimes, including robbery, loan-sharking, and murder.

Jiang Qing (March 1914 (1914-03) – 14 May 1991 (1991-05-15); also spelled as Chiang Ch'ing), born Li Yunhe, and briefly known by her stage name Lan Ping in the 1930s Shanghai, was a Chinese revolutionary, actress, and political figure. The fourth wife of Mao Zedong, she played a major role in the Cultural Revolution and led the Gang of Four.

Otto Adolf Eichmann ( EYEKH-mən; German pronunciation: [ˈʔɔto ˈʔaːdɔlf ˈʔaɪçman] ; 19 March 1906 – 1 June 1962) was a German-Austrian official of the Nazi Party, an officer of the Schutzstaffel (SS), a convicted war criminal, and one of the major organisers of the Holocaust. He participated in the January 1942 Wannsee Conference, at which the implementation of the genocidal Final Solution to the Jewish Question was planned.

Andre Crawford (March 20, 1962 – March 18, 2017) was an American serial killer, rapist and necrophile who killed 11 women between 1993 and 1999 in Chicago. Many of the women were addicted to drugs or worked as sex workers.

James Mitchell "Mike" DeBardeleben Jr. (March 20, 1940 – January 26, 2011) was an American convicted kidnapper, rapist, counterfeiter, and suspected serial killer who became known as the Mall Passer due to his practice of passing counterfeit bills in shopping malls bordering interstate highways across the United States.

Vera Renczi (dubbed the Black Widow, Ms. Poison or Chatelaine of Berkerekul), was a Romanian serial killer who was charged with poisoning 35 individuals including her two husbands, multiple lovers, and her son with arsenic during the 1920s.

Kenneth Allen McDuff (March 21, 1946 – November 17, 1998) was an American serial killer from Texas. In 1966, McDuff and an accomplice kidnapped and murdered three teenagers who were visiting from California.

Walter Paul Emil Schreiber (21 March 1893 – 5 September 1970) was a medical officer with the German Army in World War I and a brigadier-general (Generalarzt) of the Wehrmacht Medical Service during World War II. He would later serve as a key witness against Hermann Göring during the Nuremberg Trials.

Darren Deon Vann (born March 21, 1971) is an American serial killer. He was arrested on October 18, 2014, for the murder of 19-year-old Afrikka Hardy at a Motel 6 in Hammond, Indiana and has confessed to the murders of six other female victims in Indiana.

Gerald "Jerry" Walter McFadden (March 21, 1948 – October 14, 1999), who called himself The Animal, was an American serial killer and sex offender who was convicted of the May 1986 murders of two women and one man in Smith County, Texas. He fled from jail shortly after his arrest, leading to one of the largest man-hunts in Texas history that came to an end in July of that year.

Timothy James McVeigh (April 23, 1968 – June 11, 2001) was an American domestic terrorist who masterminded and perpetrated the Oklahoma City bombing on April 19, 1995. The bombing itself killed 167 or 168 people (including 19 children), injured 684 people, and destroyed one-third of the Alfred P.

Benito de Soto Aboal (22 March 1805 – 25 January 1830) was a Spanish pirate who operated in the Atlantic during the early 19th century. He was the captain of the pirate ship Defensor de Pedro, sometimes incorrectly named as the Burla Negra ("Black Joke"), that was responsible for several piracies in the Atlantic in 1828, in a period of increased piracy following the independence of the new states of South America.

Lucious Boyd (born March 22, 1959) is an American convicted murderer, rapist, and suspected serial killer who is currently on death row in Florida. Boyd was sentenced to death for the 1998 rape and murder of 21-year-old Dawnia Dacosta and is a suspect in at least ten other homicides and disappearances.

Per Michael "Joe" Ljunggren (22 March 1962 – 17 July 1995) was a Swedish outlaw biker and gangster who served as the first national president of the Bandidos Motorcycle Club in Sweden. Ljunggren was a central figure in the Nordic Biker War, in which the Bandidos feuded with the Hells Angels.

During the weekend of July 4, 1999, white supremacist Benjamin Smith targeted ethnic and racial minorities (with victims including nine Orthodox Jews, two African-American men, and a Korean man), in a three-day drive-by shooting rampage in the U.S. states of Illinois and Indiana, after which he committed suicide.

Marcel André Henri Félix Petiot (17 January 1897 – 25 May 1946) was a French medical doctor and serial killer. He was convicted of multiple murders of Jews after the discovery of the remains of 23 people in the basement of his home in Paris during World War II.

Aleksey Vasilyevich Sukletin (Russian: Алексе́й Васи́льевич Сукле́тин; 23 March 1943 – 29 July 1987) was a Soviet serial killer, rapist and cannibal. Between 1979 and 1985 (according to other data, from 1981 to 1985), along with accomplices Madina Shakirova and Anatoly Nikitin, he killed and cannibalized seven girls and women in Tatarstan.

The "Mad Dog killings" were a spree of robberies and murders committed by serial killer Joseph Louis Taborsky and his partner-in-crime, Arthur Culombe, throughout Connecticut in 1950 and between 1956 and 1957. Authorities and newspapers dubbed the killings the "Mad Dog killings" due to the brutality of the murders committed; Taborsky himself was also often given the moniker "Mad Dog." Taborsky and Culombe robbed and murdered six people during the 1956–1957 spree.

Pieter Woortman (born 23 March 1700 – 14 April 1780) was a Prussian born Dutch slave trader and colonial administrator of the Dutch West India Company. He was one of the longest-serving Director-General of the Dutch Gold Coast, in office between 1767 and 1769 (ad interim) and from 1769 until his death in 1780.

Wernher Magnus Maximilian Freiherr von Braun (US: VUR-nər von BROWN; German: [ˈvɛʁnheːɐ̯ fɔn ˈbʁaʊn]; 23 March 1912 – 16 June 1977) was a German American aerospace engineer and space architect. He became a member of the Nazi Party and then the Allgemeine SS to support his rocket work.

Melvin James Lyman (March 24, 1938 – March 1978) was an American musician and writer, and the founder of the Fort Hill Community, which has been variously described as a family, commune, or cult.

Tadeusz Grzesik (born 24 March 1960) is a Polish strawberry grower and serial killer, also known as "Strawberry" and "Killer". He is the leader of a gang which went on to be called the "Moneychangers Gang", or (more precisely) "Gang of Moneychangers Killers".

Maria Licciardi (Italian pronunciation: [maˈriːa litˈtʃardi]; born 24 March 1951) is an Italian criminal affiliated with the Camorra, head of the Licciardi clan, and one of the bosses of the Secondigliano Alliance. She was one of the most powerful bosses of the Camorra in the city of Naples from 1993 until her arrest in 2001.

Ferdinand Cohen-Blind (March 25, 1844 – May 8, 1866) was a Jewish German student who attempted to assassinate Otto von Bismarck, the Minister President of Prussia. Cohen-Blind committed suicide shortly after his arrest.

Robert Andrew Berdella Jr. (January 31, 1949 – October 8, 1992) was an American serial killer who kidnapped, raped, tortured, and murdered at least six young men after forcing his victims to endure periods of up to six weeks of captivity.

Mária Gerzsány (March 25, 1851 – December 30, 1928) was a serial killer in Austria-Hungary responsible for poisoning at least three people with arsenic in Kistelek between 1905 and 1911. She was sentenced to life imprisonment for these murders, but it is presumed that she may have been responsible for more, selling her poisons to people who wished to get rid of unwanted relatives.

Cleophus Emmanuel Cooksey Jr. (born March 25, 1982) is an American convicted spree killer and serial rapist who was found guilty in 2025 of killing eight people during a three-week killing spree in the Phoenix metropolitan area in late 2017.

Alfredo Stroessner Matiauda (Spanish: [alˈfɾeðo esˈtɾosneɾ]; 3 November 1912 – 16 August 2006) was a Paraguayan politician, army general, and military dictator who ruled as the 42nd president of Paraguay from 15 August 1954 until his overthrow in 1989. Known as El Stronato, his dictatorship was marked by political violence.

Martin John Bryant (born 7 May 1967) is an Australian mass murderer who shot and killed 35 people and injured 23 others in the Port Arthur massacre on 28 and 29 April 1996. He is currently serving 35 life sentences, and 1,652 years without the possibility of parole, at Risdon Prison in Hobart, Tasmania.

Hissène Habré (Arabic: حسين حبري Ḥusaīn Ḥabrī, Chadian Arabic: pronounced [hiˈsɛn ˈhabre]; French pronunciation: [isɛn abʁe]; 13 August 1942 – 24 August 2021), also spelled Hissen Habré, was a Chadian politician and convicted war criminal who served as the fifth president of Chad from 1982 until he was deposed in 1990.

Robert Yale Shulman (March 28, 1954 – April 13, 2006) was an American serial killer who murdered at least five young women in Hicksville, New York from 1991 to 1995. Convicted and sentenced to death for one of the murders and to life imprisonment for the others, his death sentence was later commuted to life imprisonment and he died in prison in 2006.

Jean-François Heidenreich (March 28, 1811 – March 29, 1872) was a French executioner and the first person to hold the position of Chief Executioner of France.

William Ray Bonner (March 28, 1948 – January 4, 2022) was a former service station attendant who went on a shooting spree through the South Side area of Los Angeles, California, on April 22, 1973, killing six people and wounding nine others. The rampage ended with his arrest after he had been injured in a shootout with police.

Roderick Justin "Rod" Ferrell (born March 28, 1980) is an American murderer and cult leader. He was a member of a loose-knit gang of teenagers from Murray, Kentucky, known as the "Vampire Clan".

John Frederick Thanos (March 28, 1949 – May 17, 1994) was an American spree killer who was convicted in 1992 of the murders of three teenagers: Gregory Taylor, Billy Winebrenner, and Melody Pistorio. He was executed for the murders in 1994, becoming the first person to be executed in Maryland since 1961.

Gus Winkler (March 28, 1901 – October 9, 1933) was an American gangster who headed a Prohibition-era criminal gang specializing in armed robbery and murder for hire with Fred "Killer" Burke. Winkler was a senior associate of Chicago Outfit boss Al Capone and is considered a suspect in the St.

Alexander Ivanovich Pavlenko (Russian: Александр Иванович Павленко; born 28 March 1971), known as The Maniac Policeman (Russian: Маньяк-милиционер), is a Russian rapist, murderer and suspected serial killer.

Dirk Coetzee (15 April 1945 – 7 March 2013) was co-founder and commander of the covert South African Security Police unit based at Vlakplaas. He and his colleagues were involved in a number of extrajudicial killings including that of Griffiths Mxenge.

John Martin Crawford (March 29, 1962 – December 16, 2020) was a Canadian serial killer. Crawford was convicted of killing four women in Saskatchewan and Alberta, between 1981 and 1992.

Christopher William D'Elia (born March 29, 1980) is an American stand-up comedian, actor, writer, and podcast host. He is known for playing Alex Miller on the NBC sitcom Whitney (2011–2013), Danny Burton on the NBC sitcom Undateable (2014–2016), Kenny on the ABC television series The Good Doctor (2017–2018) and Henderson on the Netflix thriller series You (2019).