Once in possession of the list, some of the aforesaid senators hastened to forward it to the legal instance in charge at that time of filing lawsuits for the negation of citizenship (I.N.S.) The opportune moment arrived with the change in the political situation within the Soviet Union in 1990. To the matter of the alibi: Apart from the need to prove that Demjanjuk lied in his contradictory versions regarding his alibi, expert witnesses were called to prove the implausibility of his version under the conditions and circumstances he described, in view of the knowhow existing from an historic point of view. Well, it turns out Demjanjuk's real name is Ivan Mykolaiovych Demianiuk, but after he was granted U.S. citizenship in 1958, he changed his name from Ivan to John. Demjanjuk was represented by Advocates Mark O'Connor and John Gil (U.S.A.) who were authorized by the Minister of Justice to represent him in Israel, and by the Israeli lawyer, Yoram Sheftel. Out of this whole sea of material, the prosecution brought to Israel the essentials of the evidence, directly impacting on key issues, under review in the Israeli court during the years the case was being conducted here. Second, the certificate enables the determination to be made that Demjanjuk was one of a limited number of Wachmans chosen to serve as murderers at the death camps particularly Sobibor on March 27, 1943. 3. 6. These documents occupy about 1,800 pages in Russian handwriting and along with their Hebrew language translation. Thus there were operating at the same time persons close to the ruling junta in the U.S.S.R. and office holders having regular working relations with the Prosecution General and other sources. C. With the creation of the O.S.I. These witnesses were primarily from the United States and Europe while two were from Israel. A. One of the reasons for the delay was that in 1979, after a series of congressional debates, (initiated by congresswoman Elizabeth Holtzman, a jurist) there was formed in the criminal division of the U.S. Department of Justice, a body given the title of 'Office of Special Investigations' (O.S.I.). 13. Offices for the security and guard services, telephone and facsimile services, and communication services for the general public and the press and more. As listed, Demjanjuk (born April 3, 1920 in the Ukraine) was a soldier in the Red Army who, falling into German captivity, volunteered for service in the S.S, underwent training and preparation at the S.S. training camp in the township of Trawn iki, Poland, where he served from March 1943 as an S.S. Wachman at the Sobibor death camp, and later at the Floenbuerg concentration camp.