Islam did this, oh and by the way the yahoo chats are full of Muslim trolls saying it can't be peaceful muslims.
Blair says he's going back to London for the day, then returning to the G8...
Well it can't by definition. It can't be "peaceful" muslims can it? I would say whoever did it is far from peaceful.
I hate baseless speculation, but having said that, the first thing I thought of was anarchists (the G8 conference).