This story started as a local news investigation into a stolen car but quickly revealed a tale of corruption inside the federal government, with national implications. We found a former Russian mobster, operating a thriving luxury car business in Florida, had been accused of various crimes by consumers - but that those crimes were not pursued by local police. In looking further at Mani Chulpayev, we found he had been a highly-regarded government informant, snitching on those in the Russian crime world. In return, it appeared he was being given a pass for crimes he continued to commit himself. As a result, the FBI has launched an investigation into the agent who was Chulpayev's handler for years. And Chulpayev now awaits trial for what prosecutors say was his role in the murder of a local hip-hop artist, amid allegations that the murder investigation had stalled for a year due to his handler's interference.