Testifying in tears, the former personal assistant described four sex assaults, including on Combs' private jet and at the Plaza Hotel in NYC.

In today's edition of Diddy on Trial, we take a closer look at testimony from an accuser referred to by the pseudonym "Mia."

One of the government’s most important witnesses has just taken the stand: one of Combs’s former employees who alleges that he sexually assaulted her. Before she walks up to the witness stand, the judge reminds the court that this witness will be anonymous - they will call her 'Mia'.