Police seeking public’s help to solve young couple’s double homicide  By Kathleen Brady Shea, Managing Editor, The Times A $15,000 reward is being offered for information that leads to the prosecution of whoever fatally shot Carnell Parker, 24, and his girlfriend, Shontae Peterson, 21, on July 6, 2008, in Coatesville. On July 6, 2008, a Coatesville woman who had just turned 21 and was...