Associate
Christ.
Looking back at the TV pics, you can see the rear right tyre on the JCB is flat, he must have hit it hard and partially spun the JCB around.
The amount of energy required to spin that thing round and rip off an F1 roll hoop really doesn't bode well for him. He's probably had his head pushed down in the impact by the way he's sitting.
Not looking good
judging by the pictures I'm assuming he it with his rear he may have been decapitated if he hit it front on. Its one of those things though no one questions the safety of the auxiliary vehicles until an accident happens.