Gavoury started his police career at Hazebrouck in 1936, occupying a variety of posts. He participated in the organization of the national police force of French Morocco between 1956 and 1959. Gavoury was assigned to Algiers beginning in 1960, retaining responsibilities in Morocco. His apartment in Algiers was bombed on 14 April 1961 during the Algerian War. Gavoury was at his family home in Charleville-Mézières at the time of the Algiers putsch of 1961. Gavoury immediately returned to Algiers, where he was killed a month later. Three more commissaires were killed that year in Algiers.[1]
Gavoury was assassinated by two members of the OAS, Claude Piegts and Albert Dovecar, at the direction of Roger Degueldre. Gavoury was stabbed to death, aged 50, in his studio on the Rue du Docteur Trolard in Algiers on 31 May 1961, eight days after beginning an investigation into the OAS.[2] Piegts and Dovecar were condemned to death on 30 March 1962 by a military tribunal in Paris, and executed by firing squad on 7 June 1962. Degueldre was also condemned to death and was executed by firing squad on 6 July 1962.[1]
