How could you tell? This is not a trick question...
When a photographer can stand there and watch terrorists execute people right in front of him, or when he can stand there and photograph a couple of guys with a shoulder missile launcher waiting for a helicopter to come by, or when he repeatedly fakes news stories about dead children killed by our soldiers, then you figure he’s a terrorist.
And I’m sure AP knows it. Unless their guys had terrorist connections, they wouldn’t have been safe walking the streets during the worst days.