Firefighters with Defense Logistics Agency Installation Management - Columbus Fire and Emergency Services pose for a photo at the Defense Supply Center Columbus Fitness Center September 11, after completing 343 steps on stair machines in honor of the 343 firefighters who lost their lives during the 9/11 attacks 22 years ago. Firefighter/EMT Hugh Gibbs (far right) climbed 110 floors on the stair machine, before completing 343 squats. From left: Firefighter/Paramedic Dylan Natko, Firefighter/Paramedic Stephen Benson, Firefighter/EMT Thomas Chadima, Vietnam veteran and frequent fitness center patron T.C. Ceasar, Firefighter/Paramedic Susan Potashnik, Assistant Chief Paul Alexander, and Gibbs. On the stair machine is Firefighter/EMT Vincent Farish.