Murder charges were filed against Keon King on Wednesday after the Philadelphia medical examiner ruled the cause of Kada Scott's death a homicide, according to the city's district attorney's office.

New charges filed against King, 21, include murder, robbery, theft, tampering with evidence, abuse of corpse, obstruction of justice and related offenses. He was previously charged with kidnapping and arson, among other crimes.

Scott's body was found in a shallow grave on Saturday at Ada H. H. Lewis Middle School in East Germantown.

In court records made public Wednesday morning for arson and conspiracy charges filed against King, investigators detail cellphone evidence that they say connects King's cellphone to areas linked to Scott's disappearance and where her body was

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