Testimony in the Sean “Diddy” Combs sex trafficking trial has opened a window into what prosecutors say was the sordid world of group sex, drugs and violence beneath his glittering, jet-set persona.

Casandra Ventura, the singer known professionally as Cassie, ended four days of sometimes grueling testimony about being abused by Mr. Combs.

Sean “Diddy” Combs was arrested in September 2024 and charged with racketeering conspiracy, sex trafficking by force, fraud or coercion, and transportation to engage in prostitution. He has pleaded not guilty.