A brave victim fought back against a homeless sex predator as he carried out a terrifying three-hour crime spree in a busy city centre.
CCTV footage shows Jake Killick, 23, grabbing the man's wallet during his rampage of robberies and sex attacks.
But as Killick calmly walks away the victim jumps on his back and drags him to the floor.
The man grabs Killick around the neck and holds him for a few moments before the attacker is able to break free and run off.
It was Killick's final crime after prowling the streets of Norwich “imposing his sexual will" on women and mugging people at random, a court heard.