As Cassie Ventura neared her 12th hour on the witness stand, she told jurors that the threats and incessant sexual demands from her ex-boyfriend, Sean "Diddy" Combs -- as well as a pattern of coerced sex with strangers -- drove her into addiction, exposed her to regular spates of violence and led her to contemplate suicide.

Star witness in the government’s sex-trafficking prosecution of the hip-hop mogul testified that he attacked her and blackmailed her with videos of sex parties as a means of controlling her.

Casandra "Cassie" Ventura is taking the stand in Sean "Diddy" Combs' criminal trial, almost two years after she sued her ex-boyfriend.