20 years since 9/11, Tunnel to Towers CEO Frank Siller completes 537-mile 'Never Forget Walk'
September 11, 2021 at 08:51 AM EDT
Frank Siller, the philanthropic brother of a fallen 9/11 first responder, finished his 537-mile journey on Saturday from Washington D.C. to New York City in honor of the thousands who lost their lives in the attacks 20 years ago.
