BBC news named him on TV just this second.
Saying his past will throw a different outlook on this.
Saying flag is a Sunni jiahast flag and one of his demands was for a proper ISIS flag.
Saying ISIS asked the black flag be showed on their attacks.
Longer it goes on more difficult it will be for him to keep control.
From BBC news channel.
Interesting pdf 3 down in this google search .. very worth a read.