Thirty years on, man accused of orchestrating Tupac Shakur's murder goes on trial

The man charged in the 1996 killing of rapper Tupac Shakur, one of America's most notorious unresolved murders, goes on trial Monday in Las Vegas. Duane “Keffe D” Davis, 63, faces one charge of murder with a deadly weapon with the intent to promote, further or assist a criminal gang in Shakur's death.