By Matt Petrillo

PHILADELPHIA (CBS) – Police are eager to make an arrest after a 36-year-old woman was killed in a violent hit-and-run. The car smashed into several vehicles on Aspen and 49th Streets in West Philadelphia before striking a woman.

Police haven’t said who the driver is but did say that after the crash, he left his car behind and ran away on foot while others tried to help the woman who he hit.

Neighbors describe the moment that police say a white Infiniti struck a woman just before 7 a.m. Sunday. The driver was traveling east on Aspen Street when he hit five parked cars and then the woman.

“I saw the lady laying in the street so I tried to help her. I wasn’t even concerned with anything else,” said Donna, who lives across the street from the scene of the crash and would only give her first name.

Donna happened to take CPR classes two weeks ago. She tried to save the victim but it was too late.

The suspect abandoned the car and ran northbound on 49th Street, police say.

Police also haven’t said whether the Infiniti was his or stolen.

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“It’s sad,” Nancy said. “People, for whatever reason, they leave the scene. You can’t understand or comprehend why.”

Police are looking at security video that shows the crash.

Anyone with information about the deadly hit-and-run is urged to call police.