Jury selection has commenced in the murder trial of an ex-street gang leader accused of masterminding the drive-by shooting death of hip-hop star Tupac Shakur three decades ago in Las Vegas. Duane "Keffe D" Davis, 63, is charged in Clark County, Nevada, with a single count of murder by use of a deadly weapon. The trial before Judge Carli Kierny is expected to run for up to five weeks in a downtown Las Vegas courthouse. Shots were fired when Davis and the others caught up with Knight and Shakur's vehicle. Neither Davis nor police have said who fired the gun at Shakur, and the three other men in the Cadillac with Davis have died.