article_snippet: Investigators don't know what caused the crash, A neighbor in the area said.
article_snippet: There were no skid marks or signs of mechanical failures in the crashed car.
article_snippet: Unknown cause: Investigators are still unsure as to what caused the crash.
article_snippet: There were no skid marks on the road and no signs of mechanical errors in the crashed car .
article_snippet: Police don't suspect drugs or alcohol as a factor but are awaiting toxicology test results.