By Mikey Smith A loophole that prevented the owner of a car that killed a toddler being prosecuted is set to be closed, after years of heartache for her parents. Pearl Black died aged just 22 months, when a Range Rover rolled off a driveway, hitting a garden wall that fell on her as she walked to her local park in Merthyr Tydfil, Wales, in August 2017. But no charges could be brought against Andrew Williams, who owned the car, because it began its journey on private land. “The police, the CPS, everybody wanted to prosecute,” Pearl’s mum Gemma told this newspaper. “But because of this one point…