Two-time Indy 500 winner Dan Wheldon was killed yesterday in a horrific 15-car crash at Las Vegas Motor Speedway. Wheldon's death was announced about two hours after being airlifted to University Medical Center. In a very short statement, IndyCar CEO Randy Bernard said, "IndyCar is very sad to announce that Dan Wheldon has passed away from unsurvivable injuries. Our thoughts and prayers are with his family". Bernard went on to say that participating IndyCar drivers and owners decided to end the race after the 13th lap. Wheldon won the Indy 500 in May for his second title and is the first IndyCar driver to die since 2006, when rookie driver Paul Dana died at Homestead-Miami Speedway during a practice session. Dan Wheldon was 33 and leaves behind a wife and two children. The drivers and owners did a five lap tribute to Wheldon that you can see below as well.