Cops Not Ruling Out Foul Play in Actress Sophie Nyweide's Death

Police in Vermont investigating the sudden death of 24-year-old actress Sophie Nyweide say she was found lifeless on a riverbank ... and they're looking into a range of possible causes, including foul play. Police say Sophie's autopsy is still pending, and will include a toxicology report. We're told a man was with Sophie when she died, and he is cooperating with cops ... though cops add he's not considered a suspect or person of interest. Police tell us there were other people hanging out with Sophie at the lean-to before her death ... and cops are trying to track them down for interviews. We're told Sophie did not live in the lean-to, but this was not her first time visiting the structure.