Updated

An upstate New York sheriff says he has completed his investigation into the death of a driver struck by NASCAR champion TonyStewart during a sprint car race last month. The district attorney will announce late next week whether Stewart will face any charges.

Ontario County Sheriff Philip Povero said Thursday he has submitted the investigation, including enhanced video, to prosecutors for review. The statement said neither Povero nor District Attorney R. Michael Tantillo would comment further.

Stewart's car struck and killed 20-year-old Kevin Ward Jr. on the dirt track at Canandaigua Motorsports Park on Aug. 9. Ward had climbed out of his car and walked onto the track to confront Stewart after he spun out while racing alongside the three-time NASCAR champion.