A Minnesota State Fairgoer was savagely attacked by a group of “young men” who fractured his jaw in multiple places — turning his night out with friends into a “hellish nightmare,” his fianceé claimed. Sammy Kimbrough, 45, was left in critical condition and needed emergency reconstructive surgery Saturday night after the brutal assault that knocked him unconscious and left him bloodied at the annual event in St. Paul, Minn. “Last night, Sammy was brutally assaulted by a group of young men in a completely senseless act of violence,” Kimbrough’s fianceé Heather Hoffman wrote on Facebook Sunday. “Anyone who knows Sammy...