Rabbi Abraham Yitzhak Kook, the first Ashkenazi chief rabbi of Palestine, who said, "The difference between a Jewish soul and the souls of non-Jews...is greater and deeper than the difference between a human soul and the souls of cattle."
The late Israeli academic and human rights advocate, Israel Shahak..."A Jew who murders a Gentile," Shahak reveals, "is guilty only of a sin against the laws of heaven, not punishable by court." Indirectly, but intentionally, causing the death of a Gentile is "no sin at all." 
A booklet published in 1973 by the Central Region Command of the Israeli army subscribes to this same doctrine. In it, the Command's Chief Chaplain writes:"When our forces come across civilians during a war or in hot pursuit or in a raid, so long as there is no certainty that those civilians are incapable of harming our forces, then according to the Halakhah they may and even should be killed Under no circumstances should an Arab be trusted, even if he makes an impression of being civilized In war, when our forces storm the enemy, they are allowed and even enjoined by the Halakhah to kill even good civilians, that is, civilians who are ostensibly good. 
Rabbi Yitzhak Ginsburgh, a leader of the powerful Lubavitch Hassidic sect, echoed the same principle, rhetorically asking, "If a Jew needs a liver, can he take the liver of an innocent non-Jew to save [the Jew]?," answering, "The Torah would probably permit that. Jewish life has an infinite value. There is something more holy and unique about Jewish life than about non-Jewish life." 
Moreover, Ginsburgh coauthored a book defending the 1994 massacre of Muslim worshippers in Al-Ibrahimi mosque (Patriarchs' Cave) in Hebron, in which he argued that when a Jew kills a non-Jew the act does not constitute murder according to the Halakhah, adding that the killing of innocent Palestinians as an act of revenge is a Jewish virtue.