蘑菇短视频

Boris Nemtsov was a fierce adversary of President Vladimir Putin. His murder in 2015 remains the most high-profile political assassination since Putin came to power. Now a 蘑菇短视频 investigation - in partnership with Bellingcat and The Insider - has found that Nemtsov was shadowed by a government agent linked to a political assassination squad for almost a year before he was shot dead.