PHILADELPHIA (CBS) – A Reading man is facing murder charges in a deadly shooting outside Pat’s Steaks in Philadelphia. Police say the suspect, 36-year-old Paul C. Burkert, shot and killed 22-year-old David Padro, of Camden, near the popular cheesesteak joint.

The shooting happened just before 1 a.m. Thursday.

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Reading Man, Paul C. Burkert, Charged In Deadly Shooting Outside Pat's Steaks

Paul C. Burkert

Police say an argument escalated. They were actually involved in a physical fight, according to witnesses.

“We believe the shooter and our victim were both in the customer area when a physical confrontation broke out. The shooter then pulled a gun and fired one shot,” Philadelphia Police Chief Inspector Scott Small said.

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Police say Padro was shot in the back. He was rushed to Jefferson University Hospital where he later died.

Eyewitnesses say Burkert got into a van – driven by someone else – and fled the scene. He later turned himself in.

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The incident remains under investigation.