Who Killed Tupac?, Sundays from 19 August, 10pm, HISTORY^®/HD (CH 270/299). Also available for 30 days in Catch Up > Channels > HISTORY^®

On September 7 1996, aged just 25 years old, Tupac Shakur was shot four times as he left a Las Vegas club – twice in the chest, once in the arm and once in the thigh.

The murder has remained one of the greatest unsolved mysteries of a generation. Before she died in May, Tupac’s mother, Afeni Shakur, reached out to civil rights attorney Benjamin Crump and urged him to get to the bottom of the case. So Crump has teamed up with HISTORY and journalist Stephanie Frederic to see if they can answer the question once and for all: who killed Tupac?

With access to the last remaining eyewitness to his murder, plus a reconstruction of the crime scene in Las Vegas and a fresh look at the evidence, Crump and Frederic are leaving no stone unturned.

Ahead of this fascinating new series, we take a look at some of the big questions surrounding the curious circumstances of Tupac’s death. What were the motivations behind killing him? And is he even really dead? Hover/click on the image below to find out