Laetitia Nourrissat Toureaux (Oyace, 1907– Paris, 1937) was a murder victim. She was found dead in a Paris Métro carriage at Porte Dorée on 16 May 1937. This crime was widely discussed at the time, and the interwar period generated multiple speculations, involving the secret services and the violent political group La Cagoule. Toureaux entered an unoccupied metro car at one stop, and was found stabbed to death less than 90 seconds later at the next stop.
Toureaux was the first person to be killed on the Paris Métro. Police investigations, led by Commissioner Badin, found that the victim was leading a double life, and that her entire family, originally from Italy, had relocated to France. Many Italians came to Paris at the time in search of work. Toureaux worked during the day in a factory, but was found to also be working under a false name as an attendant at a dance hall with a seedy reputation, and frequently making discreet visits to the Italian Embassy. She was known to have had various lovers, leading police to initially suspect a crime of passion. However, further investigation revealed she had been working as a spy. She had been employed to infiltrate La Cagoule, a far-right terrorist group that was often overlooked later in post-war France.
The case was dropped two years later at the outbreak of the Second World War.
On 29 June 1978, one episode of the French TV series De mémoire d'homme (From man's memory) was based on the murder of Laetitia Toureaux. The episode was named L'affaire Laetitia Toureaux ou Le crime parfait. (The case of Laetitia Toureaux or the perfect crime)
A book named Murder in a Metro was written about the crime.
- "10 Completely Mysterious Deaths We'll Probably Never Solve". Listverse. 2014-03-28. Retrieved 2020-05-25.
- Brunelle, Gayle K.; Finley-Croswhite, Annette (2016-05-19). Murder in the Métro. ISBN 9780807145616. Retrieved 2016-06-08.
- Finley-Croswhite, Annette; Brunelle, Gayle K. (2006), Murder in the Metro, Old Dominion University, retrieved 2008-03-03
- Deutsch, Stephanie (2014-10-10). "BOOK REVIEW: 'Murder in the Metro'". The Washington Times. Retrieved 2016-06-10.
- David King (19 January 2012). Death In The City Of Light: The True Story of the Serial Killer Who Terrorised Wartime Paris. Little, Brown Book Group. pp. 161–. ISBN 978-0-7481-3235-5.
- nbonnell (2012-05-12). "1937 - Porte de Charenton, l'énigme du meurtre de Laetitia Toureaux". Paris Unplugged (in French). Retrieved 2016-06-08.
- "Der perfekte Mord an der schönen Laetitia (29)". www.bild.de/. Bild.
- Michelle Spring; Laurie R. King (15 August 2013). Crime and Thriller Writing: A Writers' & Artists' Companion. Bloomsbury Publishing. pp. 127–. ISBN 978-1-4725-2965-7.
- Paul Copperwaite (3 November 2011). The Mammoth Book of Undercover Cops. Little, Brown Book Group. pp. 80–. ISBN 978-1-84901-733-6.