Cash App founder's alleged party attendee refuses to cooperate with police in murder case.

Khazar Elyassnia, who allegedly attended sex and drug parties with Cash App founder Bob Lee before his murder, is not cooperating with police. Elyassnia, the sister of Nima Momeni, who is accused of murdering Lee, was with Lee on the day he died and texted him around the same time he was stabbed and bled out on a San Francisco street. Police do not suspect she was involved in his murder. Lee had become involved in the city's underground party scene, known as "The Lifestyle," and was often seen with Elyassnia, who sources alleged was sleeping with him. Momeni is accused of stabbing Lee after confronting him about his sister's alleged drug use and "inappropriate" behavior.