Tunnel to Towers Foundation chairman and CEO Frank Siller and relatives retraced the steps of his late brother Stephen Siller, a firefighter who died responding to the 9/11 attack.
https://www.foxnews.com/us/family-off-duty-fdny-firefighter-retraces-steps-tunnel-towers-mission-continues-911-anniversary
https://www.foxnews.com/us/family-off-duty-fdny-firefighter-retraces-steps-tunnel-towers-mission-continues-911-anniversary