Chalk up another union corruption case to gambling. On May 31, David Ing, former treasurer of National Association of Letter Carriers Local Branch 860, pleaded guilty in U.S. District Court for the District of Hawaii to one count of embezzling funds from the Honolulu-based union in the amount of $83,293.19 and one count of structuring cash transactions to evade reporting requirements. Ing, a mailman working out of a Sand Island postal facility, served as treasurer of Branch 860 for 14 years. At his plea hearing, he told the judge, “Because of a gambling problem, I forged checks and stole money from the union treasury.” The guilty plea follows a joint investigation by the IRS and the Labor Department’s Office of Labor-Management Standards.