The UN will of course blame Israel.
Muslim terrorists killed three Israeli teenagers. Then a clan war led to the murder of a Muslim teenager. Naturally this led to a whole lot of riots, including an attempt by Muslims to storm a Jewish school, leading the students to fight back with chairs, boiling water and hot stew.
They attacked a woman... but then ran away when her husband opened fire. (Yes, it does take a good guy with a gun.)
UN vehicles however are much easier targets... because the UN doesn't fight back.
In the Jerusalem neighborhood of Neve Tzuf, near Jabel Mukaber, Arabs threw firebombs at a UN cars parked on the street. The UN car, and a second car parked nearby were completely destroyed.
The Arabs also threw firebombs on a building’s fuel tank in an attempt to blow it up. The building’s facade was lightly damaged from the fire.
The UN will of course blame Israel. Which is another reason why it's safe to torch UN vehicles.