When former security guard Israel Florez stepped off an elevator at the InterContinental Hotel on March 5, 2016, he encountered a shattered vase on the floor, a visibly injured woman and Sean Combs wearing only a towel and a "devilish stare" on his face,

NBC News' Rehema Ellis joins Ana Cabrera from outside the courthouse to report more.

Assistant U.S. Attorney Emily Johnson said Combs beat Cassie often and with little provocation and threatened to ruin her music career by releasing videos of her engaging in sexual acts with male esc...