Philadelphia Fire Department
Years of Service: 27
Date of Incident: June 18, 2022
Date of Death: June 18, 2022
On Saturday, June 18, 2022, Lieutenant Sean Williamson responded to a fire at a commercial building. Eight occupants of the property were safely evacuated. Approximately an hour later, the fire was under control. Firefighters remained working when the building collapsed around 3 a.m. Five firefighters and one inspector became trapped. Five of the individuals were rescued and immediately transported to the hospital. Lieutenant Sean Williamson was pronounced deceased at the scene.