He let the gun, the clip, and the flashlight rest for the time being on top of an adjoining tile. Then he reached up and got a grip on the heavy steel. Once that was done, it was easy to raise his knees up and go completely upside down, hanging by his hands while endeavoring to thrust his lower legs through the triangular openings in the truss. That accomplished, he was able to hang by his knees, head down, hands free.