Presumably, Demchenko passed away in a remand prison located in Rostov Oblast. The baseless prosecution against the Ukrainian national commenced in August 2023, with a total of seven hearings conducted, as per Memorial’s records. Demchenko died in the Rostov prison hospital following a stroke on Dec. 31, claimed TASS, a Russian state-run news outlet, citing sources within the Russian law enforcement. Read also: Russia’s Rostov Oblast targeted in drone attack, claims governorMassive fire at polyester plant in Russia’s Rostov Oblast — videoBorn in 1952, Demchenko resided in Mospyne, a city withi…