Murder of the monks of Tibhirine
On the night of 26–27 March 1996, seven monks of the Trappist order from the Our Lady of the Atlas Abbey of Tibhirine near Médéa, Algeria, were kidnapped during the Algerian Civil War. They were held for two months, and found dead in late May 1996.
Source: Wikipedia — Murder of the monks of Tibhirine (CC BY-SA 4.0)