On March 9, 1997, Christopher George Latore Wallace known as Biggie Smalls or Notorious B.I.G. Wallace was killed by an unknown assailant in a drive-by shooting in Los Angeles.
Read below what happened that night of his death according to Wikipedia.
Wallace traveled to California in February 1997 to promote his upcoming album and record a music video for its lead single, “Hypnotize”. On March 5, 1997 he gave a radio interview with The Dog House on KYLD in San Francisco, California. In the interview he stated that he had hired security since he feared for his safety; this was because he was a celebrity figure in general, not because he was a rapper. Life After Death was scheduled for release on March 25, 1997. On January 8, 1997, Biggie Smalls and Sean “Puffy” Combs made a video “What’s Beef” which was directed by Dave Meyers. On March 8, 1997, he presented an award to Toni Braxton at the 11th Annual Soul Train Music Awards in Los Angeles and was booed by some of the audience. After the ceremony, Wallace attended an after party hosted by Vibe magazine and Qwest Records at the Petersen Automotive Museum in Los Angeles. Other guests included Faith Evans, Aaliyah, Sean Combs, and members of the Bloods and Crips gangs.
On March 9, 1997, at around 12:30 a.m., Wallace left with his entourage in two GMC Suburbans to return to his hotel after the Fire Department closed the party early because of overcrowding. Wallace traveled in the front passenger seat alongside his associates, Damion “D-Roc” Butler, Junior M.A.F.I.A. member Lil’ Cease and driver, Gregory “G-Money” Young. Combs traveled in the other vehicle with three bodyguards. The two trucks were trailed by a Chevrolet Blazer carrying Bad Boy’s director of security.
By 12:45 a.m., the streets were crowded with people leaving the event. Wallace’s truck stopped at a red light 50 yards (46 m) from the museum. A black Chevrolet Impala SS pulled up alongside Wallace’s truck. The driver of the Impala, an African American male dressed in a blue suit and bow tie, rolled down his window, drew a 9 mm blue-steel pistol and fired at the GMC Suburban; four bullets hit Wallace in the chest. Wallace’s entourage rushed him to Cedars-Sinai Medical Center, but he was pronounced dead at 1:15 a.m.