Investigators are looking at a second video from Saturday night , sheriff says . Another car narrowly avoids hitting the 13 car as its sits on the track facing the wrong direction . Medical examiner releases only cause of death , no further injuries . Sheriff spoke with Tony Stewart 's representatives . Jeff Stewart Jr. died from injuries after Stewart hit him during a caution period .
Investigators are looking at a second video from Saturday night , sheriff says . Medical examiner releases only cause of death , no further injuries . Sheriff spoke with Tony Stewart 's representatives . Jeff Stewart Jr. died from injuries after Stewart hit him during a caution period .