Dan Wheldon’s legacy helps find a cure for Alzheimer’s at weekend event

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For the second time, Indy car drivers will gather to help a cause close to the heart of Dan Wheldon. Before his death, the Indy 500 champion raised money to find a cure for Alzheimer's. This weekend, a series of races will help honor the driver and benefit the Alzheimer's Association. Susie Wheldon and Indycar Driver Josef Newgarden share more about the event.