Massacre or riot, murder or self-defense, atrocity or accident—what really happened in Boston on the night of March 5, 1770? This program brings together an investigative team composed of historical researcher Murry Dorty, law professor Joe McEttrick, a ballistics expert, a forensic pathologist, and an acoustical engineer to reopen the books on the Boston Massacre. Together with Hiller Zobel, widely considered the definitive expert on the Massacre, the team conducts a state-of-the-art scientific analysis involving eyewitness testimony, autopsy reports, period pictures, 18th-century maps, and a minutely detailed reenactment of the lethal confrontation. A Discovery Channel Production. (46 minutes)