A Massachusetts man has died after a hiking accident in Baxter State Park.Officials said 75-year-old Donald MacGillis fell 50 feet off Knife Edge on Mount Katahdin.He and his 25-year-old nephew lost the trail Wednesday morning in dark and foggy conditions.They got in touch with authorities who told them to shelter in place until daylight.Officials said they got another call a few hours later from the nephew saying his uncle had been injured after a fall.At first light, rangers were able to get to the two men. MacGillis was flown to a Bangor hospital but did not survive.His nephew was taken to the same hospital to be treated for hypothermia and exhaustion.According to a tweet from his son, MacGillis was a journalist who had worked as an editor for the Berkshire Eagle and the Boston Globe.