Ponzi scheme

The US's largest Ponzi scheme convict Bernie Madoff passed away on April 14 at federal prison's medical facility in Butner, North Carolina. The 82-year-old had a natural death, a year after the court denied his lawyer's request to release him considering medical reasons. Nonetheless, he pleaded guilty of running an investment scam in March 2009. Reportedly, around $13 billion of his investors have been recovered out of $17.5 billion.