The guy who made the video is a Copptic Christian. He was already on thier radar. BTW, he was imprisoned for using an alias on his youtube channel where the video was located.
Let me add that the guys name is Nakoula Basseley Nakoula. He has a has run afoul of the law fairly frequently. He is also anti-Muslim. He posted the video in July of 2012, but was/is being blamed for worldwide protests around the globe in September 2012, even though, none of the protesters that were interviewed had heard of him or seen the video.