A paedophile ring has been smashed after eight men were found guilty of a horrifying catalogue of more than 50 child pornography and abuse charges.Among the crimes was a shocking sexual attack carried out on a three-month-old baby boy by an executive adviser on child sex issues. James Rennie, chief executive of a publicly-funded gay rights group, was one of the men exposed yesterday as members of Scotland's biggest paedophile ring. Rennie, 38, molested the toddler son of unsuspecting friends - a little boy he had been trusted to babysit - recording the abuse and sharing it with other...