Caroline Ellison's diary crucial in FTX fraud case: report.

Caroline Ellison's personal notebook, filled with handwritten observations, has emerged as a key piece of evidence in the upcoming fraud trial of FTX founder Sam Bankman-Fried. Prosecutors also possess electronic documents written by Ellison, who is set to testify against Bankman-Fried after pleading guilty to fraud charges. The evidence includes more than six million pages of emails, Slack messages, and other digital records, making it one of the largest troves of documents ever secured in connection to a white-collar securities fraud case. Bankman-Fried's trial is set for October.