It Was A Gruesome End

According to the investigation, ‘Molly had been tied, raped, and brutally stabbed in the back, neck, and throat. Geoffrey was shot three times in the back, abdomen, and head by a .22-caliber gun.’ Considering that hundreds of people go hiking through the Appalachian Trail each and every day, murder was not a common occurrence in the area, which made them wonder, who could have done such a thing?