How did Marco simoncelli die?

Marco Simoncelli died on October 23, 2011, due to sustaining serious trauma to the head, neck and chest. He was involved in a Motorcycle Racing accident with fellow drivers Colin Edwards and Valentino Rossi.

Simoncelli was struck in the head and neck by Rossi's bike during the Malaysian Grand Prix. He was taken to the medical center and died less than an hour later.