NEW YORK – Tens of thousands of people took to the streets of New York City on Sunday for the annual Tunnel to Towers 5K run and walk , which honors the brave men and women who lost their lives during the terrorist attack that took place on Sept. 11, 2001.

The somber event, which takes place on the last Sunday in September, retraces the steps of Stephen Siller, a New York City firefighter who died while saving others when the Twin Towers fell that morning.

On Sept. 11, 2001, Siller, with 60 pounds of gear on his back, walked through the Brooklyn Battery Tunnel to the South Tower of the World Trade Center, to help those who were trapped inside.

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Siller’s son, also named Stephen, spoke with FOX Weather Meteorologist Bayne Froney ahead of the event on Sunday.

"For

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