Those put on trial confessed to all crimes (under duress or after torture) and were sentenced to punishment. Slánský attempted suicide while in prison. The people of Czechoslovakia signed petitions asking for death for the alleged traitors. Apropos of the conspiracy theories of the Protocols of the Elders of Zion, prosecutors claimed that a "Zionist-Imperialist" summit had taken place in Washington DC in April 1947 with President Truman, undersecretary of state Dean Acheson, former treasury secretary Henry Morgenthau Jr., David Ben-Gurion and Moshe Sharret in attendance. The prosecution charged that defendants were acting in accordance with a so-called "Morgenthau Plan" (not to be confused with the contemporaneous Morgenthau Plan plan for German heavy industry) to commit espionage and sabotage against Czechoslovakia for the US in exchange for American support for Israel. Czechoslovakia was seen as especially pro-Zionist due to their armament support for Israel during the Palestine War. Ironically, most of the defendants were known to be ardent anti-Zionists.