article_snippet.sent: Scroll down for video .
article_snippet.sent: All of human remains are believed to belong to one person, whose death is being treated as a homicide, Middlesex District Attorney Marian T. Ryan said.
article_snippet.sent: Middlesex District Attorney Marian T. Ryan said the person under arrest would be arraigned Monday in Cambridge District Court on charges of being an accessory after the crime of assault and battery and improper disposal of human remains.
highlights_snippet.sent: Cambridge Police are treating situation as a homicide investigation .
  