By CBS3 Staff

PHILADELPHIA (CBS) — A grieving mother is pleading for justice for her murdered son. Family and friends gathered in Frankford to remember Khari Tyson.

They gathered on the 4900 block of Charles Street.

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Last Thursday, the 28-year-old was shot inside a basement apartment on Guyer Avenue in the city’s Elmwood neighborhood.

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“We’re just out here celebrating his going away and to remember him, for those that know him. And if you know this person, please, please — or if you see this person — call the police,” said Taga Tyson, the victim’s mother.

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Police say 28-year-old Charles Johnson is wanted for Tyson’s murder.