The third and final group of mayoral candidates appeared before theChicago Tribune Editorial Board Thursday and weighed in on the judge’s finding in the Laquan McDonald cover-up trial. Policy consultant Amara Enyia, attorney Jerry Joyce Jr., former Police Board President Lori Lightfoot, and former police Supt. Garry McCarthy all made their case to be the next mayor at the forum. A judge on Thursday acquitted three Chicago police officers of trying to cover up the 2014 police shooting of Laquan McDonald to try to protect Jason Van Dyke — who pulled the trigger.