This is reported by TASS with reference to the vice-president of the Russian branch of the International Committee for the Protection of Human Rights Ivan Melnikov.
He said that, according to his information, "Booth and Greiner were pardoned before the exchange procedure."
Melnikov clarified that in this regard, they will not have to serve the remaining sentence in their countries.
On December 8, the Russian Foreign Ministry announced the exchange of American Brittney Griner for Russian Viktor Bout.
It was also reported that Bout returned to his homeland.