>> frightening moments caught on track there. the white truck lost control after a jump and flipped over on to people standing along that course. six people died at the scene. two died later. at least nine others were hurt. four of them seriously. racing officials advised spectators to stand well back from the course. clearly, people were not heeding that advice. the young man who captured the tragic event on video tells cnn he had his own close call just moments earlier. >> about two minutes before, i started filming, there was a close call with myself and some friends that were on the left side where i was filming. and i actually was a lot closer than, you know, what it shows on the video. i got pushed back. it was -- i got shaken up. i turned to my friend. man, that was close. and that's when i decided to film what was going on and that's the only video i have of the whole race was just that --