Authorities investigating the fatal shooting of a Vincennes man this week say the autopsy results on the victim remain pending. 23 year old Drew Roach was found dead early Wednesday at a Thunderhill Drive residence north of Vincennes. 23 year old Jacob Lacoste was preliminarily charged with voluntary manslaughter in connection with the incident. He remains incarcerated in the Knox County Jail without bond pending a court appearance. The Indiana State Police and Knox County Sheriffs Department are ongoing in their investigation of the alledged shooting.