"There was a huge explosion we felt inside the house. I thought it was our own house - you know that something exploded or dropped like a water heater fell down or something," the viewer said. Sign up ...

A timelapse video and photos captured by the Breathe Project show the massive plume from a deadly explosion at the U.S. Steel Clairton Coke Works on Monday, Aug. 11, that has now left two people dead ...