 Pedzisa mutsara unotevera: Nyaya yomumwe muzvinabhizimisiwo zvake anobva kumaodzanyemba kwakadziva kumabvazuva kwePoland, Ryszard Siwiec, uyo akazvipisa nomoto mukati momutambo mukuru wokukohwa munhandare yeWarsaw muna 1968. Akazviita kuti apikisemukurwisana nokupinda muchiuto muCzechoslovakia. 