In August, the bodies of two elderly women, Dorothy Hobbs and Nellie Bradley were found off a farm path outside of Murfreesboro in Hertford County. The sisters, both in their 70s, were discovered stabbed in the chest, throat and face, and their clothes were ripped off. Hertford County Sheriff Juan Vaughan has now released new details into the investigation. Sheriff Vaughan says a third DNA sample found in the sister's car does not match that of either woman. Vaughan says while the new evidence has not led them to a suspect just yet, it breathes new life into the investigation. Family members have their own theory on why someone would target the elderly sisters. The sisters, who were known to travel together on a frequent basis in Southside Virginia and Northeastern North Carolina, were last seen alive at approximately 4:15 p.m. on August 4 when they stopped at Boykins Virginia Baptist Church to make a donation to "Relay for Life."