https://news.artnet.com/people/isis-beheads-antiquities-scholar-326116?utm_campaign=artnetnews&utm_source=081915daily&utm_medium=email
http://artdaily.com/news/80843/Islamic-State-beheads-elderly-ex-antiquities-chief-Khaled-al-Assaad-in-Syria-s-Palmyra#.VdWbKeFRFhE
http://theartnewspaper.com/news/conservation/158333/