Investigators are looking at a second video recorded 1995 Saturday night , sheriff says . Ward began racing at 4 . Medical examiner releases only cause of death , no further details . Authorities speak with Kevin Ward Jr. representatives . Stewart died from injuries after Stewart hit him during a caution lap .
Investigators are looking at a second video recorded 1995 Saturday night , sheriff says . Medical examiner releases only cause of death , no further details . Authorities speak with Kevin Ward Jr. representatives . Stewart died from injuries after Stewart hit him during a caution lap .