Absolutely zero Americans were killed in those prior attack.
LIAR!
Prior to Benghazi were there 13 attacks on embassies and 60 deaths under President George W. Bush PolitiFact
Of these 39 attacks, 20 resulted in at least one fatality. (
Our complete list is here.) Though if you only count attacks on embassy and consular property, there were 13.
In the 20 incidents with at least one fatality, the total death toll was 87. If you only count those at embassies and consulates proper, the number of deaths drops to 66.
We should note that the vast majority of these deaths were not Americans. We counted 63 deaths that were either of non-Americans or of people whose nationality is unknown. Another
three were U.S. civilians. Another 21 were workers at the U.S embassy or consulate, either of American or foreign nationality.