What were Academi (ex Navy Seals ) former mercenaires of Blackstone

[Penelope]

doing in Benghazi at the time of the attack and so close to the compound? I must of missed it as I did not see the interrogation on TV except for tidbits. Who hired them and why were they there? The State Dept? or separate investors?

I see there are many threads on Benghazi here and sorry I don't have time to read them all. Did this come up at all. Thanks.