And with appeal of his December 1994 conviction pending, Shakur returned to Los Angeles and joined Death Row. On June 4, 1996, it released the 2Pac B side "Hit 'Em Up." In this venonmous tirade, the proclaimed "Bad Boy killer" threatens violent payback on all things Bad Boy—Biggie, Puffy, Junior M.A.F.I.A., the company—and on any in New York's rap scene, like rap duo Mobb Deep and obscure rapper Chino XL, who allegedly had commented against Shakur about the dispute. On the night of September 7, 1996, Shakur was in Las Vegas, Nevada, to celebrate his business partner Tracy Danielle Robinson's birthday and attended the Bruce Seldon vs. Mike Tyson boxing match with Suge Knight at the MGM Grand. Afterward, in its lobby, someone in their group spotted Orlando "Baby Lane" Anderson, an alleged Southside Compton Crip, whom the individual accused of having recently, in a shopping mall, tried to snatch his neckchain with Death Row Records medallion. The hotel's surveillance footage shows the ensuing assault on Anderson. Shakur soon stopped by his hotel room and then headed with Knight to his Death Row nightclub, Club 662, in a black BMW 750iL sedan, part of a larger convoy. At about 11 PM, for its loud music and lack of license plates, bicycle-mounted police stopped the car on Las Vegas Boulevard. The plates were found in the trunk, and the car was released without a ticket. At about 11:15, at a stop light, a white, four-door, late-model Cadillac sedan pulled up to the passenger, and an arriving occupant rapidly fired at Shakur, who was struck four times, once in the arm, once in the thigh, and twice in the chest, one bullet entering his right lung. Shards hit Knight's head. Not in the car, Shakur's bodyguard, Frank Alexander, had been tasked, he would say, to drive the car of Shakur's girlfriend, Kidada Jones. Shakur was taken to the University Medical Center of Southern Nevada, heavily sedated, put on life support, and later, to prevent involuntary reactions injurious, put under a barbiturate-induced coma. In the intensive-care unit, on the afternoon of September 13, 1996, Shakur died from internal bleeding. He was pronounced dead at 4:03 PM. The official causes of death are respiratory failure and cardiopulmonary arrest associated with multiple gunshot wounds.