Police say the man used the victim's credit card at a gas station on the 2200 block of Walnut Street.
It was 4 a.m. Saturday then the 38-year-old victim was attacked inside her own car.
She was sitting inside of her car looking for her purse after leaving a party when an unknown man entered her vehicle brandishing a firearm.
Suspect sought for sexual assault in University City
The suspect held her at gunpoint.
If you know anything about this crime, please call police immediately.
Police continue to investigate.
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