Yarmolenko was found on May 5, 2008, strangled beside her car on the banks of the Catawba River in Mount Holly where authorities say she had gone to take photos.
A defense motion reveals DNA from first-degree murder suspects, 40-year-old Mark Carver and 54-year-old Neal Cassada Jr., was found inside 20-year-old student's car.
Lawyers for the two cousins charged have filed motions asking their $100,000 bail be reduced or current house arrest conditions be lifted.
Prosecutors say they will fight those motions.
