Good evening. The high speedlp high stakes an sometimes highly emotional sport of professional car racingxdt . Still what happened on a track in upstate new york stunned long time racing fanse1 lefrg a youn driver ged and another, one of the sportss billingest names engulfed int tragedya5 ande1 controversy. Officials say nascari] champion tony stewart competingni at a dt track eventfa struck and killed fellow driver kevin ward jr. As he stood o tr after ar u . Today stewartnir national car event he was supposed to race in as police sought to determine ifw3 this w anything more than what itw3xd appeared to be. Aq horrible accident. Nbcs kristen i]dalgren has the latest. O todays nascar sprint cup race in upstate new york. Details emerge of thee1 deadly crash vofrg aqq timee1 nascart champion tony e1stewart. Stewar investigators are reviewing video of the crash and how stewart operated thees high n cars equipped with quing bu . Uiu increase traction and help it turn corners. This is st