Bernie Madoff confessed a $50 billion Ponzi scheme to his wife and sons. By 7 a.m. the next morning, his own sons had turned him in to the FBI. In the video below, his wife and son explain what happened the night he confessed. Madoff wasn't a basement con man. He was a former chairman of Nasdaq, and for decades his fund paid the same steady returns, year after year. It never invested a penny. New investors' money paid the old ones. On paper, $65 billion. By the end, a few hundred million was left. His sons Mark and Andrew worked for him for 20 years, two floors above the fund. The 17th floor was off-limits. Every time they asked, he told them: "You guys have your business to worry about." The night he confessed, Ruth asked one question: "What's a Ponzi scheme?" The sons went to the authorities. Ruth stayed. A day later she asked Andrew to co-sign his father's $10 million bail bond. He refused. Turning him in didn't save them. The bankruptcy trustee sued Andrew for $60 million, nearly everything his father had ever paid, lent or given him. Ruth gave up $80 million and kept $2.5 million. Bernie got 150 years. Mark died two years to the day after the arrest. He was 46. The sons did the right thing, and it destroyed them. The wife stood by him, and she walked away with $2.5 million.