CNN New Day March 20, 2015 11:20:00
For example, the atrocious statement they released in january where they beheaded 21 christians. it was produced very cinematically, there were a lot of shots that were artistic but for the subject matter. here in contrast you have a very crude audio statement, it doesn't provide any real details about the attack. it only gives the battle names for the attackers, as opposed to their actual names. it doesn't provide an indication that they have any sort of inside detail. all of that created some question marks. it struck me as a possibility. albeit a very low one that they could be preemptively...
Source: archive.org