Analysis of information sources in references of the Wikipedia article "Judaism and violence" in English language version.
Judaism lex talionis.
Although Goldstein did not say anything during his attack to explain his actions it is known that the night before his assault he had attended a service at the Jewish side of the Cave of the Patriarchs where after listening to the traditional reading from the Scroll of Esther, he told others who were there that they should all behave like Esther. The timing of his attack at the same site the next day hardly seems to be the product of happenstance or coincidence. It was the day of Purim. Moreover, although his actions seemed to be the product of a mind that had snapped or become depraved, there did not seem to be any sign that he was suffering from a mental disorder. His actions were deliberate and intentional. Goldstein was troubled by the ongoing peace negotiations between Israel and the Palestinians in Oslo and he was openly concerned that a Palestinian state was about to be created. His attack on Muslim worshippers at the same site, while Purim coincided with Ramadan, was an attempt to symbolically cast himself in the story as Mordecai. Indeed, that was exactly the way in which his actions were interpreted by other settlers at Kiryat Arba, and in the years to come after 1994, there would be numerous instances in which the settlers would also celebrate Purim by invoking Goldstein's memory and image in a provocative manner.
Similarly, the passage in Mishnah Makkot 1:10: "A Sanhedrin that puts a man to death once in seven years is called a murderous one. R. Eleazar ben Azariah says 'Or even once in 70 years.' R. Tarfon and R. Akiva said, 'If we had been in the Sanhedrin no death sentence would ever have been passed'; Rabban Simeon b. Gamaliel said: 'If so, they would have multiplied murderers in Israel.'
This refers to the statement in the Mishnah (Mak. 1:10; Mak. 7a) that a Sanhedrin that kills (gives the death penalty) once in seven years (R. Eleazer b. Azariah said: once in 70 years) is called "bloody" (ḥovlanit, the term "ḥovel" generally implying a type of injury in which there is blood).