[5][6] Three decades later, in 1956, he was made vicar general of the archdiocese, assisting recently appointed Archbishop Léon-Étienne Duval.
[1] The ordination ceremony took place at St Philippe Cathedral (now Ketchaoua Mosque) in Algiers, and was broadcast on Télévision Algérienne.
[11][12][13] The attack took place shortly after noon, while the bishop was walking down the crowded Rue Khelifa Boukhalfa in central Algiers,[7][12][14] near the archdiocesan offices and St Charles Church (now El Rahma Mosque).
[10] Witnesses reported that the man approached Jacquier, stabbed him several times with a knife, and fled into a car waiting nearby.
[5][8] Jacquier was wearing full clerical attire at the time of the attack, including the pectoral cross worn by Catholic bishops.
[14] Following Jacquier's murder, Duval ordered the priests in the Archdiocese of Algiers not to wear the religious habit in public or to display the cross conspicuously.