freezing temperatures from chicago all the way to new york city. and now the new storm on the move tonight. the washington, d.c. to philadelphia to new york all bracing for the next system coming. rob marciano timing it out. in new york city tonight, the manhunt for a possible serial stabbing suspect. authorities say surveillance images show him armed with a hunting knife. at least three victims attacked just today. one victim stumbling into a dry cleaners for help. stephanie ramos with new reporting. also in new york, an explosive day in court at the civil defamation trial against donald trump. a jury. reporter: finding trump liable, with his accuser, e. jean carroll on the stand today, trump lashing out. the judge threatening to kick him out of court. the disturbing video tonight. a 14-year-old boy with autism tased by police in his own backyard. the boy suffering a broken hip. the family calling it a case of mistaken identity. an officer can be heard questioning if