The 18-year-old was killed last week in a hit-and-run crash in northwest suburban Lake Zurich.
Investigators released surveillance photos of a vehicle they suspect was involved in the crash. The images show a two-tone blue van with either silver or gray. It's believed to be either a GMC Safari or Chevrolet Astro van.
Drozdz and her two friends were struck by a car when they were walking to Alpine Fest in Lions Park on July 22.
