Detectives have filed a search warrant request to gain access to Vanessa Pham's e-mail and Facebook accounts.
Investigators know Pham was on her cell phone moments before she died, and they want to see who she might have been in contact with, according to the affidavit.
Pham, 19, was found stabbed to death in her car along Route 50 in the Annandale, Va., area almost 5 months ago while she was home on break from college. She had just finished her freshman year at Savannah College of Art.
Anyone with information related to incident is asked to contact Crime Solvers at 1-866-411-8477.
