It was a covert operation known by Obama, Biden, Clinton & State, and the Gang of 8 (both party reps). For this reason the details can never be made public, and no one will ever be convicted. Benghazi hdqtrs & Stevens were by design in “darkness” and so nothing could be revealed then, or now, or ever. It’s all been a masquerade.
Those who have been paying close attention know Stevens was shipping the weapons Hillary distributed to Al-Qaeda through Turkey to the Syrian “rebels” now known as ISIS.