Sean ‘Diddy’ Combs’ ex-girlfriend Cassie to testify as star witness in sex trafficking trial

May 13 - Sean "Diddy" Combs' ex-girlfriend Casandra Ventura, a rhythm and blues singer known as "Cassie," is expected to testify on Tuesday as the prosecution's star witness in the hip-hop mogul's sex trafficking case, a day after jurors saw a video of Combs hitting and kicking her in a hotel in 2016.

Prosecutors say Combs lured women into romantic relationships, forced them to take part in days of drug-fueled sex parties and then blackmailed them with videos he recorded of the encounters.

Combs “viciously attacked” women when they resisted taking part in the parties, known as "Freak Offs" or otherwise upset him, prosecutor Emily Johnson said during her opening statement on Monday in Manhattan federal court.