Updated

Tune in to Fox News this Friday at 10 p.m. ET for a "Special Report" investigation on the Libya consulate attack. 

Bret Baier anchors an investigation into the violent fiasco in Libya that ended in the deaths of a U.S. ambassador and three other Americans.

The special includes Baier's exclusive interview with the head of the U.S. Embassy's Site Security Team, and the latest developments from Benghazi.

It will also include additional reports from the White House and the campaign trail -- where voters are asking:  What did President Obama know, and when did he know it?