WINONA, Minn. – Police were trying to unscramble the facts of a confrontation on the Far West End that may or may not have involved a firearm. Officers were called to the 50 block of Lenox Street about 8:50 p.m. A man and woman said they had stopped their motorcycle for a man yelling at them but whom they couldn’t hear because their bike noise was too loud – so they steered closer. At that point, the man, still yellling, pulled a handgun from a case and waved it at  them. Or so they said. When police later located the man, he denied any firearms. He did, however, acknowledge an argument and said he shook an impact wrench at the bikers. Police classified it all as an open case.