A butcher has been found guilty of raping and murdering 21-year-old Libby Squire.Pawel Relowicz, 26, raped the Hull University student on a playing field before dumping her in the River Hull, a jury at Sheffield Crown Court heard.He was found guilty today after a jury heard a mass of circumstantial evidence linking him to Ms Squire’s disappearance, despite pathologists being unable to determine how she died.A police search was launched when Ms Squire, a second-year philosophy student, went