FROM: http://www.sbnation.com/
Indianapolis 500 champion Dan Wheldon has been killed after being involved in one of the worst motor racing crashes in memory today in the IndyCar Series finale at Las Vegas Motor Speedway.
Wheldon was among 15 cars collected in a wreck of unspeakable magnitude shortly into the race.
The video is below the jump, but we advise you to brace yourself before watching it.
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