The nearly 50-year-old mystery of the unidentified "Pinnacle Man" has finally been solved. His remains have been identified as Nicholas Paul Grubb, a 27-year-old from Fort Washington, Pennsylvania. The announcement was made by the Berks County Coroner’s Office, ending decades of speculation surrounding the frozen body discovered in a cave near the Pinnacle, an Appalachian mountain peak, on January 16, 1977.