On the night of March 31, 2006, Brian Shaffer, a 27-year-old second-year medical student at Ohio State University, went out with friends to celebrate the start of spring break in Columbus, Ohio. The evening began like any other night out — laughter, drinks, and the usual bar hopping.Brian’s last confirmed sighting was captured on surveillance cameras entering The Ugly Tuna Saloona, a popular nightclub on High Street, at about 1:30 a.m. But here’s the mystery: despite multiple cameras monitoring