UTICA, N.Y. (AP) -- A man accused of killing a 17-year-old girl and posting photos of her corpse on social media has pleaded not guilty.
  
Brandon Clark, of Bridgewater, has been charged with second degree-murder in the killing of Bianca Devins, of Utica. Devins' family and friends filled the Oneida County courtroom Monday.
  
Police say 21-year-old Clark met Devins on Instagram about two months ago. Authorities say they attended a concert in New York City on July 13 where they got into an argument.
  
Prosecutors say Clark used a large knife to kill Devins in Utica early the next morning, then stabbed himself in the neck and took selfies on a tarp covering her body.
  
Clark's lawyer, Luke Nebush, said the investigation is continuing and he won't discuss details of the case publicly.

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