In the three years after the Chicago mob sent Tony Spilotro to Las Vegas, there were more gangland murders in the city than in the previous 25 years. This was not a coincidence. Tony Spilotro was a cold-hearted killer. Despite being almost continuously under investigation and a suspect in over 20 murders, he operated for over ten years in Vegas without conviction for even a minor offense, thanks to bribery and intimidation. In 1986, the police and the FBI had a breakthrough. They persuaded one of Spilotro's long-term henchmen, Frank Cullotta to turn informer. As the cases for murder and burglary mounted up, Spilotro suddenly became a problem for the Mob.