It was probably Hillary Clinton's idea to blame the attack on Benghazi on the unknown parody that nobody had heard of. Then there would be an excuse to arrect the film-maker since there are many oppositional films and all the film makers are staunch citizens with no arrests but the maker of the unknown parody angering Muslims did have a prior arrest or was on probation so he could be arrested to bring attention to the excuse.
The Benghazi massacre was too close to the election for intervention that would alienate big money donors to Democrat National Committee.
Sadly the ravishment of Ambassador Stevens was committed to insult him personally. A Muslim Serb stated in an interview that it is a regular thing to insult guys like Stevens with ravishment.