"The East Coast, West Coast rivalry led to a lot of bad blood between Suge, Death Row, and Puffy and Bad Boy. Both were big at the time," said retired NYPD Det. Derrick Parker, the first cop assigned to investigate crime in the hip-hop world. Parker was known on the streets as the "Hip-Hop Cop."

Negotiations for Combs to voluntarily surrender had been ongoing, a source told CNN after his arrest. On Friday, what investigators discovered inside Combs’ room at the Park Hyatt became public in testimony at his criminal trial. He appeared to be living without the concern his personal items would be searched or seized in an arrest.

Rapper Scott Mescudi, better known by his stage name Kid Cudi, is expected to testify at Sean "Diddy" Combs' trial this week. Mescudi was in a relationship with Casandra "Cassie" Ventura after they met in December 2011, she testified last week.