https://www.gazeta.ru/army/2018/10/12/12019627.shtml
http://www.kasparov.ru/material.php?id=5BBEF8A21D19C
https://www.inopressa.ru/article/11Oct2018/wsj/aeroflot.html
https://www.kommersant.ru/doc/3765968
https://www.kommersant.ru/doc/3766275
https://www.gazeta.ru/politics/2018/10/11_a_12017041.shtml
Nikolai Glushkov, a close associate of the late oligarch Boris Berezovsky, was preparing to testify that Aeroflot was a corrupt instrument of Russian intelligence. Then, on the eve of his court date, he was strangled to death with a dog leash.
http://www.kasparov.ru/material.php?id=5BBDE57B5BEF5