Where a U.S. District Court did not abuse its discretion in relying on testimony of a co-conspirator to establish a loss amount by preponderance of the evidence.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Andrea R. Wood.Branko Bogdanov, along with his wife, Lela, and their adult daughter Julia, ran a multistate shoplifting operation for a decade. On their travels to shopping malls and retail stores, the trio stole consumer retail goods such as American Girl dolls, Lego blocks and bags …