The skulls and bones of Rwandan victims rest on shelves at a genocide memorial inside a church at Ntarama, just outside the capital Kigali, in this 2010 file photo. Rwandans began an official week of mourning April 7 to mark the anniversary of the genocide, in which mostly Tutsis and some moderate Hutus, ethnic groups with a history of rivalry, were killed.(CNS photo/Finbarr O’Reilly, Reuters) (April 7, 2014) See POPE-RWANDA (UPDATED) April 3, 2014.