This is written by a person who investigated this incident and had access to the Shamgar Commission, and that was a report written by the Israeli government. Because you seem to believe that the government is most trustowrhty, this should be good for you.
A. On February 21,1994 The Kiryat Arba Town Council near Hebron had an emergency meeting called at short notice by General Mofaz and Brigadier General Kalifi who warned the residents that the Army had concrete evidence that the Arabs were planning a serious attack, and the Jewish medical officers be ready for emergency aid (this referred to Dr. Goldstein as the head medical officer in Kiryat Arba).
B. At the same time a leading Israel newspaper Yediot Aharonot, published a news report before Purim with a report that Hamas forces in Hebron had for days circulated through their terror group Ez a-Adin Alquasam,the murderers who recently had killed the Lapides and other Hebronite Jews, an alert to all Arabs in Hebron to stock up with food and provisions since a great attack on Jews would take place and that it could be expected that, afterwards, the Israeli government would impose a curfew on the Arab population. This all-important clue to the impending Arab pogrom is contained in the Shamgar Report (Page 236): "This being a Friday, the end of the Ramadan holy month, warnings of an attack had been given. There were no grounds for expecting a Jewish attack on Arab worshippers - but to the contrary an attack by the Hamas was expected." The background to these warnings is elaborated on, on page 235 of the Report with a description of the violent and hostile mood of the Arabs and their cries of "Etbach el Yahud".
C. The Report also contains an account (page 139) of the appeal by the Sheikh Tayassar Temimi in the Machpelah to kill Jews, which set the bellicose mood of the Arabs.
D. The Israeli Press (Hatzofeh of February 27th) reported that on the eve of Purim some 2000 Arabs gathered during the time of the reading of the Megillah and shouted the infamous warcry "Etbach el - Yahud" - slaughter the Jews. These blood curdling cries must have shocked and unnerved every Jew and were foreboding for what the Arabs had prepared for the next day. In 1929, too, the pogrom had been preceded by the dreaded warcry. Baruch Goldstein understood full well what was impeding. The Lapids, recent murder victims of the same terror group, had died in his arms.?..
E. At least one witness, Mordechai Sayed, heard from inside the Machpelah that a gun, wrapped in an Arab "kafiye" was found in the Machpelah, proving that the Arabs-far from being peaceful worshippers, were armed for their planned pogrom. The witness to this discovery offered the Shamgar Ccommission to testify about his discovery, but was informed by Commission by their letter to him of April 12, 1994 that "there is no need for your testimony." This refusal is most curious and indicates a preconceived prejudice to rule out evidence of Arab provocations. (No body search was conducted on Arabs entering the Machpelah.)
F. I was shown various personal eye witness accounts describing the threatening position prior to Purim: Carl Bishop, an American visitor with a group from the States, encountered violence at the Machpelah one week before Purim. Betya Cohen, local resident, testified that she heard in the days before Purim Arab appeals by loudspeaker "screaming in flowery language that the Holy Land must be recovered from the evil people (the Jews)." Mrs. E.S., a local resident, testified about the Arab broadcasts before Purim heralding Arab attacks on Jews. When she reported this to the Israeli Army she was told "we know." Similar Arab broadcasts had been heard some weeks before which were followed by the attacks on the Lapides, resulting in killing of 2 of their members. Yisrael Ben Ahron, an Army reservist in Kiryat Arba, testified that he saw Arabs storing food before Purim, and that although the Army knew this, they did nothing about it. Yitshak Matoof, local resident, testified that "Arab storekeepers told me not to come to the Machpelah on Purim as it will not be good for Jews there." Ilan Tor, local resident, who was used to reciting Tehillim every morning in the Machpelah was terrified Purim morning "by fhe Arabs howling 'Slaughter the Jews' and their threatening gestures." Mr. Tor was sure that he would be killed by the Arabs. IDF major D.S. testified before the Shamgar Commission that he was afraid to sleep in his usual place on Purim eve "because he knew that something terrible was going to take place and he wanted to be ready."
I found the website you pulled this from, Manfred Lehman. If you read more carefully, he says that he got most of this information from Goldstein's parents. Now don't get me wrong, from everything I have seen and read, Baruch Goldstein lived an exemplary life until that night and his parents should defend him as any parents would defend their children, even when they are wrong, as I have for my son even when he did not have the cleanest hands in a situation. But do you really think that is an objective look at a situation? I would love to be able to say that what Goldstein did was justified. I am 100% in favor of Jews forcefully defending themselves, from Daniel Pinner, to Avri Ran and Shai Dromi, I think Israelis are insane for punishing Jews who clearly were defending themselves against vicious Arabs. I just don't see any evidence that Goldstein did anything more than snap and shoot a bunch of people.