PONTE VEDRA BEACH, Fla. - Twenty years ago, the World Trade Center towers collapsed into great piles of ash and rubble after two hijacked planes filled with jet fuel slammed into them. Nearly 3,000 people were killed in the terrorist attacks. Among them were members of the Fire Department of New York City. One of them, 37-year-old Daniel Suhr, was hit by someone who jumped from the South Tower. Suhr's sister Jean Suhr Ryan said her brother was a good man. She and her family have worked to honor him since. They have written a book about him and continue to share his story.

Suhr was with his Engine 216 crew when they responded to the World Trade Center. His sister said the firefighters were rushing towards danger. They got there quickly because they were stationed nearby. A fire captain who was with Suhr that day described how difficult it was to maneuver the truck through debris. They arrived at the base of the towers where they saw smoke and flames. They tried to get to the lobby command post. But it was too dangerous. Suhr was on his way when someone jumped from the south tower and landed on him.

The men of Ladder 118 were devastated by the news of their fellow firefighter's death. "It's hard to wrap your head around it," says his cousin, Mike Leavy. "You don't want to believe it."

Suhr's kid brother, Chris, remembers him playing football for James Madison High School and the semi-pro Brooklyn Mariners. He was a linebacker and the team captain. He loved the Giants but enjoyed football more. He also liked fishing and crabbing. Working on older muscle cars was another passion. He followed his father, a retired FDNY lieutenant, into the fire service. He was a captain for the Fire Department football team until he decided to retire.