The Notorious B.I.G also known as Christopher Wallace murder files were released by the FBI

The FBI unveiled records related to the FBI probe of the murder of The Notorious B.I.G. The case that was closed in 2005 after federal prosecutors declined to pursue charges in the matter. The Notorious B.I.G. was shot to death in Los Angeles in 1997, a murder that remains unsolved.

FBI agents in Los Angeles, San Diego and New York attempted to track down potential suspects and witnesses who might have been able to shed light on the unsolved murder to no avail. Informants told the FBI that the killing of B.I.G may have been aided by corrupt police officers who wanted the singer dead. The files include several mentions of sources who refused to talk to L.A. investigators because of suspicions of corruption.

via Notorious B.I.G - Notorious B.I.G Unsolved Murder File Released By FBI.