being Gruba) and those who strongly doubted it (among these were Colonels Zygmunt Kalisz and Stefan Tokarz, Lt. Zbigniew Gątarz and prosecutor Leszek Polański). Marchwicki himself denied responsibility, but behaved oddly at interrogations, talking about supposedly undisclosed murders, and when asked to sign the protocol, he wrote at the bottom that "this is all a lie". At one point, he took the protocol and attempted to swallow it. Meanwhile, the investigators also arrested his accomplices in the murder of Kucianka: they turned out to be his brothers, Henryk and Jan. Henryk was arrested on May 21, 1972, followed by Jan three days later. The latter, an employee for the administration at the Faculty of Law at the Silesian University, had come into conflict with Kucianka, who had accused him of accepting bribes from applicants and claimed that his sexual orientation sullied the university's reputation. At the same time, while he was a secret informant for the security service, Jan feared that Kucianka would report him to the rector Kazimierz Popelek, so he persuaded Zdzisław to kill her with his help. On July 4, the investigators also arrested the Marchwickis' sister, Halina Flak, and on November 11, Jan's lover, Józef Klimczak (who later testified that Jan had indeed participated in the murder) was also arrested. The final arrest occurred on December 29, when Flak's son, Zdzisław, was also detained. The investigation into the case lasted over two years, with the case file consisting of 166 volumes. The trial began on September 18, 1974, at the venue Klub Fabryczny Zakłady Zynkowe "Silesia" (Factory Club of Zakłady Zynkowe) in Katowice; due to the notoriety of the proceedings, people were only allowed to enter by purchasing a special ticket. The hearing was chaired by Justice Władysław Ochman and prosecuted by Józef Gurgul and Zenon Kopiński; Marchwicki's attorneys were well-known lawyers Bolesław Andrysiak and Mieczysław Frelich. The main defendant, Zdzisław Marchwicki, was charged with 23 crimes, the most serious of which were the 14 murders and 7 attempted murders. The charges seemed sensible to the court, as he had a history of beating his family members, disrespecting police officers, embezzlement of public property and other offenses. His brother, Jan, was charged with 8 crimes, most notable of which was inciting and participating in the murder of Jadwiga Kucianka. Henryk Marchwicki and Józef Klimczak were accused in complicity in Kucianka's murder (Henryk was additionally charged with