Police are releasing a video they hope will help them solve the slaying of 19-year-old Vanessa Pham.

Pham was found stabbed to death in a vehicle crashed in a ditch near Route 50 and Gallows Road in Falls Church shortly after 3:30 p.m. on June 27.

The video shows her white 2008 Toyota Scion entering the Fairfax Plaza shopping center, driving through the parking lot and leaving the lot, all within a half hour of her death. She was also seen at a business in the plaza during that time, police said.

Police are asking anyone who recalls seeing her car at the shopping center that day to contact investigators at 866-411-8477 or 703-691-2131.