 Nyorera kupfuurira kweiyi ndima - Muma1930, Stalin sezviri pachena akatanga kunetsekana zvikuru pamusoro pekurumbira kuri kukura kwemukuru webato reLeningrad Sergei Kirov. Pamusangano weParty wa1934apo kuvhota nokuda kweCentral Committee itsva kwakaitwa, Kirov akagamuchira mavhoti matatu chete asina kunaka ashoma kupfuura vamwe vose vakakokwa nepo Stalin akagamuchira mavhoti asina kunaka anopfuura zana. Pashure pokuurayiwa kwaKirov, uko kungave kwakanga kwakarongwa naStalin, Stalin akagadzira zano rakadzama rokupinza vatungamiriri vanopikisa muurayi, kubatanidza Trotsky, Lev Kamenev, naGrigory Zinoviev. Kubva ipapo, kuongorora uye kutongwa kwakawedzera. Stalin akapa mutemo mutsva pamusoro pemasangano amagandanga nezviito zvegandanga izvo zvaifanira kuongororwa kwamazuva asingasviki gumi, pasina kupomerwa, magweta okudzivirira kana kuti kukwidza nyaya, zvichiteverwa nechirango chinofanira kuurawa nokukurumidza. 