Indeed.
We still do not actually know who was responsible for the attack and no group claimed responsibility.
Apparently some of the attackers were members of Ansar al-Sharia militia group, but the attackers might have been a heterogenic group affiliated with different militia groups (Parts of Martyrs of 17 February Brigade? Omar Abdurrahman group? Individuals from Libyan Supreme Security Council police? etc).
Some of the attackers claimed their motivation was the video, but perhaps the attackers had also other motivations.
And if it was a preplanned attack we do not know who planned it and when (months before? weeks? days? hours?).
Libyan government's early assessments seemed to be conlicting. They blamed supporters of Muammar Gaddafi and then OTOH al-Qaeda. Prime minister Mustafa Abu Shagur downplayed the assumption of al-Qaeda after arresting at least four suspects and promising more arrests:
"We don't have any proof as yet of an al-Qaeda presence as an organisation in Libya," although "some youths have been influenced by the extremist ideology of al-Qaeda" (
Libya makes arrests over Benghazi attack)
Some days later Libyan President Mohamed Magariaf said in
"Face the Nation" that they had already arrested about 50 suspects, and that it was a preplanned attack "by foreigners" - he does not specifically mention al-Qaeda, but the reporter does.
I wonder what happened to the big breakthrough the Prime Minister claimed, and to those 50 arrested suspects the President mentioned.