Sarah Evangeline York was 21 when she was found shot to death in the autumn of 1999 in a house near Appalachia Bay on Keystone Lake in Pawnee County, Oklahoma. Her boyfriend, 23-year-old Buddy Gene Bolding Jr., was also found dead from a gunshot wound at the same residence, which sits in an area mostly of vacation homes.

Investigators found no sign of forced entry. Sarah’s purse had been emptied on a counter, and the gun used in the killings belonged to Bolding. The firearm was not found by investigators initially, even after using gun-sniffing dogs; it was later located by Sarah’s father in a closet, wiped clean of fingerprints. Authorities have long considered a possible link to Bolding’s alleged marijuana sales and his described storied past, but no solid leads emerged.

No arrests have been made and no person of interest has been officially named. Does anyone have information about the couple, their contacts in 1999, or the area near Keystone Lake that could help bring answers?