Anne Dupont de Ligonnès

The Dupont de Ligonnès murders and disappearance 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, along with the family's two dogs, were killed at an undetermined date in early April 2011, and their bodies were found buried in their garden on 21 April. 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.

Anne Dupont de Ligonnès was born on 2 August 1994 in Draguignan. She was in the 11th grade following an academic curriculum in Science, and was described by her friends and relatives as a girl who shared her mother's religious beliefs and was considerate and approachable.[7] Her friends became concerned when she was regularly offline and did not answer calls. Anne was 16 years old at the time of her death.

https://en.wikipedia.org/wiki/Dupont_de_Ligonn%C3%A8s_murders_and_d...