The book murder rap by greg kading is a good read, he was the last detective to have investigated the tupac and biggie killings and is probably the most accurate and reliable account of what happened. Orlandos uncle confessed that he took part in the tupac hit. He told detectives that puffy was in fear for his life and offered up $1 million for both suge and tupac to be killed, the orlando beating was just coincidence and extra motivation for them that night. Also keefe d was heavily involved with drug trafficking with puffs close family friend eric zip martin who was the main conduit between puff and the south sides. He apparently gave keefe d the gun that night to do the job.