Polonium and Kovtun

Kovtun is the son of a Soviet general, who was introduced by the KGB into Germany. But the German police, after the murder of Litvinenko, discovered a large amount of polonium 210 in the apartment of Kovtun’s mother-in-law. For some reason, he or the mother-in-law opened this vessel with polonium. They contaminated the entire apartment. Therefore, he was quickly deprived of German citizenship. This isotope of polonium is very expensive, because K. receives only artificially. In a car, FSB employee Kovtun brought polonium to Germany, and from there by plane to Great Britain. Meticulous journalists found this out and trumpeted it all over the world.
Journalists claim that this unique method of murder (like the unusual poisoning of Ukrainian President Yushchenko with a complex poison based on dioxin) was first tested on State Duma deputy from the Yabloko party Yuri Shekochikhin, because he tried to investigate the explosions of houses in Moscow.
http://www.rusglobus.net/shekochihin/index.shtml
and not for his book about KGB informers
http://lib.ru/POLITOLOG/SHEKOCHIHIN/raby.txt

The blame for his poisoning was placed on Berezovsky, and Shekochikhin’s body was forbidden to be exhumed by doctors in order to determine the cause of death, which was mysterious to the doctors.
Kovtun is hiding something. He did not give a second press conference to reporters.