Looks like Diddy used the compound 2-CB aka Nexus (street name "tucci"). Its a white powder that often has pink dye added and often cut with cocaine (aka "pink cocaine"). It can be easily dissolved in liquid and added to drinks of unsuspecting victims.
It's being totally misreported in news that "tucci" is simply cocaine and mdma mixed, or ghb and cocaine etc. It's actually 2-CB, a powerful synthetic psychedelic aphordesiac that produces a unique euphoria, characterized with extreme empathy and agreeability.
Diddy almost certainly used this substance on unsuspecting straight guys to allow him to do gay stuff to them. Hope he gets totally destroyed, and his victims get compensation and closure.
To my knowledge, there are no urine tests developed for this drug. When consumed with alcohol, like MDMA and other drugs, blackouts occur. This makes it extremely hard for victims to prove they were drugged and/or assaulted. Its the perfect drug for sexual predators. Still, no one knows its out there.