Russian agent allegedly in Bulgaria when Emilian Gebrev poisoned in 2015 and in UK when Skripals attacked
https://www.thedailybeast.com/us-intelligence-russia-tried-to-con-the-world-with-bogus-missile
https://tyzhden.ua/Economics/226605
https://www.gazeta.ru/business/2019/02/18/12191605.shtml
https://www.kommersant.ru/doc/3888314
https://www.kommersant.ru/doc/3880960
http://expert.ru/2019/02/18/potok/
https://www.inopressa.ru/article/18Feb2019/wsj/calvey.html