Bill Walton is one of the most accomplished basketball players of all time. But, the Helix High School alum's biggest impact may have come off the court. Walton's philanthropy is as legendary as he is. He has been especially active with the Challenged Athletes Foundation. Walton has long been a cycling enthusiast and has led countless charity and memorial rides, including one on Saturday morning to honor military veterans. So, a group of private donors got together to say thank you to Bill in a unique way.