The Day – A man flagged by casino security officials as a “known card cheat” pleaded guilty Wednesday in New London Superior Court to using invisible ink to mark cards at Mohegan Sun on Sept. 15, 2013. Bruce Koloshi, 55, of Summit, N.J., who is also known as Jeffrey William Elliot, pleaded guilty to attempted cheating at gambling and received a 10-month prison sentence followed by three years conditional discharge. As a condition of the plea bargain, Koloshi is banned from Mohegan Sun and Foxwoods Resort casinos. “You are not welcome at any casinos in Connecticut,” Judge Hillary B. Strackbein…