Voykov was shot .
Voykov was killed on 7 June 1927 in Warsaw , at the Warsaw Central Train Station by Boris Kowerda , the 18 - year - old son of a White Russian monarchist , and a student of the Russian Gymnasium from Wilna .
Voykov was shot and killed on 7 June 1927 in Warsaw , at the Warsaw Central Train Station by Boris Kowerda , the 18 - year - old son of a White Russian monarchist , and a student of the Russian Gymnasium from Wilna .