Police believe Smith stabbed 58-year-old John Reil just outside the Marion Village Apartments on July 8.
Investigators say Smith had been drinking with a friend earlier that night and approached Reil as he was getting out of his car.
Officials say a friend of Smith's contacted police about the crime.
Smith has allegedly confessed to the crime.
He's being held on $5-million cash bail.
You can get the latest crime statistics from the Philadelphia Police by CLICKING HERE for the force's crime data mapping site.
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