That link does not work, but if that can be confirmed, that is extremely bizarre and interesting.
For readers who do not know, Kadyrov is the gangster-kingpin of Chechnya who is owned by Putin. When not sending around religious police to intimidate little girls, Kadyrov spends his days naming streets after Putin and raping people in sex dungeons.
It is a link in Russsian http://newsdaily.com.ua/post/1103316
More on Kadyrov:
At present, he says, he has “evidence only in two cases - the murder of [Chechen leader Zelimkhan] Yandarbiyev in Kuwait and the murder of Aleksandr Litvinenko in London.” In those cases, it is impossible that advance knowledge of these killings was not known “at the highest levels.”
As for the murder of Boris Nemtsov, Kovalyev says, he can allow that it was “an unasked for gift by Kadryov,” although he continues that “certain services in Moscow could have suggested that this gift should be given.” But the reluctance of Western governments to push harder for investigations of these crimes will only encourage Putin to think he can commit more.
http://windowoneurasia2.blogspot.se/2015/11/kremlin-thinks-west-would-not-respond.html