Opemipo Jaji from Edmonton has been convicted at the Old Bailey of raping an 11-year-old girl as she walked home from school.
He followed her as she got off a route 192 bus and dragged her into Jubilee Park, where he subjected her to a three-hour attack.
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Police are hunting a man who is suspected of grabbing an 11-year-old girl who only got away by biting her attacker's hand.