Ku sii qor faqradan - Sergei Yushenkov waxaa lagu toogtay meel u dhow gurigiisa oo ku yaal Moscow bishii Abriil 17, 2003, saacado uun kadib markii ugu dambeyntii la helay diiwaangelinta loo baahan yahay xisbigiisa Liberal Russia si uu uga qeyb galo doorashooyinka baarlamaanka ee Diseembar 2003 ee 55 gobol. Hadalkiisii ugu dambeeyay ee dadweynaha ka hor yimid wuxuu ahaa " Diiwaangelinta waa la dhamaystiray". Mikhail Trepashkin wuxuu rumeysan yahay in Yushenkov la dilay maxaa yeelay wuxuu ahaa hogaamiyaha xisbi mucaarad ah oo si cad u caqabad ku ahaa awooda FSB iyo mas'uuliyiinta Ruushka. Waxaa intaa dheer, Yushenkov wuxuu u balanqaaday codbixiyayaasha baaritaan madax banaan oo ku saabsan qaraxyada guryaha Ruushka
sida arinta muhiimka ah ee ololihiisa doorashada (wareysiga Trepashkin waxaa laga arki karaa agaasimaha filimka dokumenteriga ah ee Andrei Nekrasov "Aaminaad la'aan", Google Video).