Missing person cases in France

Jacques Vergès (5 March 1925 – 15 August 2013) was a Siamese-born French lawyer and anti-colonial activist. Vergès began as a fighter in the French Resistance during World War II, under Charles de Gaulle's Free French forces. After becoming a lawyer, he became well known for his defense of FLN militants during the Algerian War of Independence. He was later involved in a number of controversial and high-profile legal cases, with a series of defendants charged with terrorism, serial murder, crimes against humanity, and war crimes. This includes Nazi officer Klaus Barbie "the Butcher of Lyon" in 1987, terrorist Carlos the Jackal in 1994, and former Khmer Rouge head of state Khieu Samphan in 2008. He also defended infamous Holocaust denier Roger Garaudy in 1998 as well as members of the Baader-Meinhof gang. As a result of taking on such clients, he garnered criticism from members of the public, including intellectuals Bernard-Henri Lévy and Alain Finkielkraut, political-activist Gerry Gable as well as Nazi hunter Serge Klarsfeld.Vergès attracted widespread public attention in the 1950s for his use of trials as a forum for expressing views against French colonial rule in Algeria, questioning the authority of the prosecution and causing chaos in proceedings – a method he promoted as "rupture defense" in his book De la stratégie judiciaire. He was imprisoned for his activism in 1960 and temporarily lost his license to officially practice law. He was a supporter of the Palestinian fedayeen in the 1960s. He would later disappear from 1970 to 1978, without ever explaining his whereabouts during that period. An outspoken anti-imperialist, he continued his vocal political activism in the 2000s, including opposing the War on Terror. The media sensationalized his activities with the sobriquet "the Devil's advocate", and Vergès himself contributed to his "notorious" public persona by such acts as titling his autobiography The Brilliant Bastard and giving provocative replies in interviews, such as "I'd even defend Bush! But only if he agrees to plead guilty."

The Dupont de Ligonnès murders and disappearance also known as "la tuerie de Nantes" involved the murder of five members of the same family in Nantes, Loire-Atlantique, France, followed by the disappearance of the patriarch of the family, Xavier Pierre Marie Dupont de Ligonnès. His wife, Agnès Dupont de Ligonnès, and their four children, Arthur, Thomas, Anne and Benoit along with the family's two dogs, were killed on an undetermined day in early April 2011. Their bodies were found buried in their garden on April 21st. Xavier disappeared at the same time and has not been found. The exact nature of the events has never been determined, but Xavier is the subject of an international arrest warrant and is considered the prime suspect in the murders.

Louis Aimé Augustin Le Prince (28 August 1841 – disappeared 16 September 1890, declared dead 16 September 1897) was a French artist and the inventor of an early motion-picture camera, and director of Roundhay Garden Scene. He was possibly the first person to shoot a moving picture sequence using a single lens camera and a strip of (paper) film. He has been credited as the "Father of Cinematography", but his work did not influence the commercial development of cinema—owing largely to the events surrounding his 1890 disappearance.A Frenchman who also worked in the United Kingdom and the United States, Le Prince's motion-picture experiments culminated in 1888 in Leeds, England. In October of that year, he filmed moving-picture sequences of family members in Roundhay Garden and his son playing the accordion, using his single-lens camera and Eastman's paper negative film. At some point in the following eighteen months he also made a film of Leeds Bridge. This work may have been slightly in advance of the inventions of contemporaneous moving-picture pioneers, such as the British inventors William Friese-Greene and Wordsworth Donisthorpe, and was years in advance of that of Auguste and Louis Lumière and William Kennedy Dickson (who did the moving image work for Thomas Edison).
Le Prince was never able to perform a planned public demonstration of his camera in the US because he mysteriously vanished; he was last known to be boarding a train on 16 September 1890. Multiple conspiracy theories have emerged about the reason for his disappearance, including: a murder set up by Edison, secret homosexuality, disappearance in order to start a new life, suicide because of heavy debts and failing experiments, and a murder by his brother over their mother's will. No conclusive evidence exists for any of these theories. In 2004, a police archive in Paris was found to contain a photograph of a drowned man bearing a strong resemblance to Le Prince who was discovered in the Seine just after the time of his disappearance, but it has been claimed that the body was too short to be Le Prince.In early 1890, Edison workers had begun experimenting with using a strip of celluloid film to capture moving images. The first public results of these experiments were shown in May 1891. However, Le Prince's widow and son Adolphe were keen to advance Louis's cause as the inventor of cinematography. In 1898, Adolphe appeared as a witness for the defence in a court case brought by Edison against the American Mutoscope Company. This suit claimed that Edison was the first and sole inventor of cinematography, and thus entitled to royalties for the use of the process. Adolphe was involved in the case but was not allowed to present his father's two cameras as evidence, although films shot with cameras built according to his father's patent were presented. Eventually the court ruled in favour of Edison. A year later that ruling was overturned, but Edison then reissued his patents and succeeded in controlling the US film industry for many years.