After nearly five decades, authorities have identified the remains of the man known as 'Pinnacle Man' as 27-year-old Nicholas Paul Grubb from Fort Washington, Pennsylvania. Grubb's body was discovered frozen in a cave along the Appalachian Trail on January 16, 1977, with initial investigations ruling his death as a drug overdose with no foul play suspected. Despite numerous attempts over the years to identify him using fingerprints and DNA analysis, it wasn't until August 2023 that a breakthrough occurred when original fingerprints were rediscovered and matched by the FBI. The case was reopened by the Berks County Coroner's Office in 2009, leading to exhumations and further forensic attempts, but previous DNA tests proved inconclusive. Grubb's family, who had been searching for him for decades, is now planning to re-bury him in a family plot, marking a bittersweet resolution to a long-standing mystery.