NEW YORK: Sam Bankman-Fried's lawyer laid out his defence case at his fraud trial on Wednesday (Oct 4), portraying the 31-former billionaire as a "math nerd" who overlooked risk management in building his FTX exchange, but did not steal customer money. Bankman-Fried has pleaded not guilty to charges he used FTX customer money from the exchange's 2019 launch until its November 2022 bankruptcy in order to prop up his hedge fund, Alameda Research, buy luxury real estate, and donate to US political campaigns and candidates.