Employees at the bar said Dunn was not visibly intoxicated at any point that night and surveillance video shared with police supported those observations, said Frank Herron, the bar's general manager.
"He spoke clearly. He walked clearly. He came in hop, skip, jumping. He left hop, skip, jumping," Herron told The Associated Press. "If these results are true, I'm shocked at it. We were very confident that he had not had that much."