Caroline Ellison, whose testimony helped convict Sam Bankman-Fried, faces her own sentencing

​ A year ago, Caroline Ellison was preparing to testify against her former boss and ex-boyfriend in one of the biggest fraud trials in US history. On Tuesday, she’ll learn whether her own gamble — cooperating with prosecutors in the hopes of staying out of prison — will pay off. Read More Breaking News, Latest News and Videos | CNN