BBC News Published image copyrightHumberside Police image captionAlex Procter was jailed for a total of 33 months for the attack on Mr Dean and other offences A man who targeted a wheelchair user in an attack which would "offend any right-thinking member of society" has been jailed. Alex Procter attacked Karl Dean, who has cerebral palsy, on the victim's way home from The Bank pub in Hull in August. A judge said the attack, in which Mr Dean was knocked from his chair and left unconscious, was "appalling". Procter, 20, admitted the assault at an earlier hearing. Hull Crown Court heard Mr Dean was returning home with friends after a night out and was playing a siren noise through a computer on his wheelchair, and joking about going to hospital.