Povero says Stewart was fully cooperative , and indicates the incident is n't being investigated as a criminal matter .
Aug. 10 : In a 3 a.m. news conference , Ontario County Sheriff Philip C. Povero confirms Ward 's death and identity and announces an investigation into the fatality .
Sheriff says Stewart was fully cooperative , and indicates the incident is n't being investigated as a criminal matter .
Aug. 10 : In a 3 a.m. news conference , Ontario County Sheriff Philip C. Povero confirms Ward 's death and identity and announces an investigation into the fatality .