Opening statements begin today in the murder trial of Tupac Shakur's alleged killer — nearly 30 years after the rapper was gunned down in Las Vegas. Prosecutor

Opening statements begin today in the murder trial of Tupac Shakur's alleged killer — nearly 30 years after the rapper was gunned down in Las Vegas. Prosecutors say suspect Duane “Keffe D” Davis was riding in the white Cadillac involved in the 1996 drive-by shooting that killed the hip-hop legend a…