Cassie Ventura’s testimony has been gripping and graphic. It may be key to proving charges against Sean ‘Diddy’ Combs

Cassie Ventura, the former girlfriend of Sean “Diddy” Combs, gave emotionally gripping – and at times – graphic testimony, offering the world a glimpse into her longtime relationship with the music mogul and alleged drug-fueled sex performances known as “Freak Offs,” during his racketeering and sex trafficking trial this week.