the results could have been potentially disasterous
UPDATE:

An examination of the terrorist's body, following his attempt to enter Ma'arat HaMachpela, revealed the following facts:

1. His body was totally shaved;
2. He carried a copy of the Koran in his clothing.

These two facts reveal that the terrorist had prepared himself to die. It's thought that he planned on trying to steal a soldier's weapon and then open fire. However, security forces were able to stop him before he could implement his murderous plan.

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At about 9:00 tonight an Arab crashed through the security checkpoint outside Ma'arat HaMachpela - the Tomb of the Patriarchs and Matriarchs, in Hebron. Such security checkpoints are located at both entrances to the holy site, the "Jewish side" and the "Arab side" to ensure that no weapons are brought into the building.

When the Arab refused to stop at the checkpoint and began running up the stairs into the building, security forces called him to stop. When he continued, they shot at him, killing him. Their primary fear was that the Arab was either carrying weapons, or was himself a human bomb, and would detonate himself near Israeli security forces.

Initial examination of his body did not reveal such a bomb.

A Hebron spokesman issued the following statement: Arab terrorists continue to attempt to kill Jews in the vicinity of Ma'rat HaMachpela. Their primary targets are police, soldiers and other security forces stationed near the Casba, adjacent to the "Arab entrance" into Ma'arat HaMachpela. Fortunately their alertness has paid off, and the terrorists are apprended before they can fulfill their bloody goal.

Tonight's incident is another example of the explosive situation in Hebron. Had the security officers not been fully alert, the results could have been potentially disasterous.  Thank G-d, the police and soldiers were fully aware of this situation and did what they had to in order to protect other security forces as well as Jews worshiping in the building at the time. The deserve full credit and praise for their continued efforts to maintain security at Ma'arat HaMachpela.