Katehon is an independent think tank organization consisting international network of people from Russia. Harun Yahya’s article, “Ambasador Andrey Karlov is now the undying symbol of Turkish-Russian friendship” is published at the English and Russian publication of Katehon.
http://www.harunyahya.org/tr/Articles/238493/Hayir-Turkiye-ve-Rusya-bu-sefer-tuzaga-dusmeyecek