The night before, a mob -- chanting against Coptic Christians such as El Sayeh and calling for Egypt to become an "Islamic state" -- had torched and looted the Virgin Mary Church.
MORE: http://www.cnn.com/2013/08/15/world/meast/egypt-church-attacks/index.html
See also...
Standoff at Cairo mosque-turned-makeshift morgue follows deadly clashes
http://www.cnn.com/2013/08/16/world/meast/egypt-protests/index.html
Ravaged Churches Reveal Sectarian Split Feeding Egypt's Violence
http://readersupportednews.org/news-section2/318-66/19001-ravaged-churches-reveal-sectarian-split-feeding-egypts-violence
Political Islam on the defensive across the Middle East
http://www.religionnews.com/2013/08/20/political-islam-on-the-defensive-across-the-middle-east/