CHAPEL HILL (WTVD) -- Chapel Hill police say they have received hundreds of tips after granting ABC's 20/20 exclusive and unprecedented access into their investigation of murdered University of North Carolina sophomore Faith Hedgepeth.
Investigators are now following up on the potential new leads that continue to pour in from across the country.
Hedgepeth was found brutally murdered inside her Chapel Hill apartment four years ago.
RELATED: 20/20 SHOWS COMPOSITE OF WHAT FAITH HEDGEPETH'S KILLER MAY LOOK LIKE
Included in a report that aired Friday night, is a never-before-seen composite of what the killer may look like based on DNA evidence found at the crime scene. Using genetic code from the DNA, a software company in Reston, VA was able to predict the eye color, hair color, skin color, freckling, face morphology, and ancestry of the alleged killer.
Police have said 19-year-old Hedgepeth was found bloodied and beaten in her Chapel Hill bedroom the morning of Sept. 7, 2012, after a night out at a bar with her roommate Karena Rosario.
A sexual assault kit was collected which showed the presence of male semen.
Investigators have said that DNA belongs to Hedgepeth's killer, but after collecting and comparing hundreds of samples from persons of interest, none have been a match.
There's a $40,000 reward still available for information in the case. If you have any information, please call Crimestoppers at (919) 942-7515.
ABC News Correspondent Ryan Smith's report also features security camera footage of Hedgepeth and Rosario at The Thrill nightclub, photos of the alleged murder weapon, and crime scene photos.
CLICK HERE TO READ MORE FROM 20/20