If you pushed for time here are the cliffs;
-Haitian Jack a big time gangster (stick up kid) in early 90's New York, and used to run with Jimmy Henchmen.
-Haitian Jack was feared in the streets and used to strong arm rappers and hood celebrities (apparently stole 10K and a Rolex from diddy)
-Haitian Jack ingratiates himself to Notorious BIG, and Diddy. (He also has ties to Mike Tyson...and later on is implicated in the murder of Ty'sons bodyguard. Mike puts a 100k bounty on his head)
-Notorious BIG links up with Tupac, they start performing together...eventually he introduces Pac to Haitian Jack
-Pac and Haitian Jack become fast friends, Haitian leaches of Pac...Pac lives vicariously through Haitian's 'thug' reputation.
-One night Haitian and Pac are partying, and a woman cries rape...Pac goes to jail for a long stint, Haitian gets a few months (Pac claims 'snitch'). In between the trial and sentencing Pac starts dry snitching on Haitian. Haitian takes offense, orcherstrates a studio meetup with Bad Boy and Pac (Pac is shot 7? times but survives).
-Pac spends time in prison and is heavily leaned on by Haitian's peoples. Until Suge Knight comes to bail him out.
-There's more but read for yourself or else the cliffs would be pointless (e.g. James Woods gave early warnings of 9/11, 50 cent almost gets killed, hamas sells drugs, Madonna and Pac etc)