Fireman Uses Gym Stair Climber to Commemorate Responders Killed on 9/11

(STORYFUL) A photo showing a man suited in a full firefighter's uniform climbing 110 stories on a stair machine to commemorate the 15th anniversary of the attacks on the Twin Towers on September 11, 2001, has gone viral, being shared over 75,000 times at the time of writing.

The man in the video has been identified as Jason Harding, who is cited by WGRZ as writing:

"When I went to the gym this morning at 6am before coming onto shift I was only wanting to honor the fallen heroes and their families on this day 15 years ago. I was not and am still not looking for any self recognition," and, "I have been in emergency services for the most of my career after college and wouldn't change that for anything. There are memorial stair climbs all across the country today honoring just as I did. I have participated in Nashville's Memorial Stair Climb for the past 4 years. Unable to make it this year I decided to honor anyway."