Sam Bankman-Fried was sentenced to 25 years in jail for stealing $8 billion from customers of the now-bankrupt FTX cryptocurrency exchange he founded. The 32-year-old California-born former billionaire, once referred to as 'Crypto King', became a billionaire before 30 and turned FTX into world's second largest exchange platform. He was included in the 2021 Forbes 30 Under 30 list.