sex predator who was caught on camera raping a 13 year-old girl on a cycle path was today caged for four and a half years.Mark Pettigrew, 19, was also convicted of raping another 15-year-old girl and having underage sex with a third.At the High Court in Glasgow judge Lord Burns told Pettigrew: “You have either pled guilty to or been found guilty of very serious sex offences against young girls.