 This happened about a mile from the convention. Thirteen Columbus officers reportedly staged for a daily briefing at the time. NewsCenter 7's Nick Foley. The officers saw a man with a knife in each hand threatening an unarmed man. They told him to drop those knives, and when they say he did not, five officers opened fire. The Milwaukee area investigative team now looking into what happened. Investigators say this violence had no connection to the convention.