The Germans brought in a European Red Cross committee called the Katyn Commission, comprising 12 forensic experts and their staff, from Belgium, Bulgaria, Croatia, Denmark, Finland, France, Hungary, Italy, the Netherlands, Romania, Switzerland, and Slovakia. The Germans were so intent on proving the Soviets were behind the massacre they even included some Allied prisoners of war, among them writer Ferdynand Goetel, the Polish Home Army prisoner from Pawiak. After the war, Goetel escaped with a fake passport due to an arrest warrant issued against him. Jan Emil Skiwski was a collaborator. Józef Mackiewicz has published several texts about the crime. Two of the 12, the Bulgarian Marko Markov and the Czech František Hájek, with their countries becoming satellite states of the Soviet Union, were forced to recant their evidence, defending the Soviets and blaming the Germans. The Croatian pathologist Eduard Miloslavić managed to escape to the US.