Iran submitted a letter to the United Nations Human Rights Commission, demanding an investigation into the weekend killing of an Iranian scientist. Javad Larijani, the secretary general of Iran's High Council of Human Rights, said he blamed Israel for the assassination of Daryoush Rezayeenejad, a 35-year-old graduate student who was gunned down outside his home in Tehran Saturday. "Mr. Rezayeenejad's assassination shows that there is quite a hostile policy against our nation, in which the Zionists and the United States and some European governments are fully engaged," Larijani told the semi-official Fars news agency Wednesday. Calling the scientist's death "a crime against humanity," Larijani said he has written a letter to Navi Pillay, head of the UNHRC in Geneva. In his letter, Larijani demanded an investigation of the scientist's death saying: "The U.N. Security Council issues a resolution and makes a list of our scientists, then some terrorists who receive money from the CIA and the Mossad kill them. This is a very clear game and strong action should be taken about it."