PHILADELPHIA -- A Philadelphia man has been accused of stabbing a 15-year-old girl more than 50 times and burning her body after they met on social media.

Police said Thursday that 23-year-old Cole Swaringer-Herring was charged with murder, arson and abuse of a corpse in the death of Sabriya McLean.

Homicide Capt. Jack Ryan says Swaringer-Herring attempted to conceal the murder by burning the Delaware girl's body and burying it under a pile of leaves.

A screengrab from CBS Philly shows the location in a Philadelphia alleyway where the body of slain Delaware teen Sabriya McLean was found, Nov. 28, 2017. CBS Philly

Her body was found Tuesday behind a building in west Philadelphia.

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CBS Philly reported earlier this week that Swaringer-Herring had told his parents about the alleged killing himself, and it was his parents who called the police. The motive is not yet known. CBS Philly said Swaringer-Herring is believed to have been in contact with McLean on Facebook.

A message left with the public defender's office listed as representing Swaringer-Herring was not immediately returned.