Leonid Volkov, the late Russian opposition leader Alexei Navalny's close associate and top strategist, accused Wednesday Russian President Vladimir Putin’s “henchmen” of being behind a brutal attack that left him hospitalized in Lithuania’s capital and vowed to “not give up.” Police said an assailant attacked Volkov on Tuesday as he arrived in a car at his Vilnius home, where he lives in exile. Volkov suffered a broken arm "and for now he cannot walk because of the severe bruising from the hammer blows,” according to Navalny’s The Anti-Corruption Foundation.