Where a defendant’s conviction for involvement in a drug trafficking conspiracy was based almost entirely on a federal agent interpretations of suspicious conversations, insufficient evidence existed to support conviction.The 7th U.S. Circuit Court of Appeals reversed a decision by U.S. District Judge Rebecca R. Pallmeyer.Beginning in 2010, federal and state agents spent two years investigating an Illinois-based drug trafficking organization headed by Alan Cisneros. Cisneros, and most of his co-conspirators, was …