FBI Agent Dave LeValley was driving to work in Manhattan when he saw the first jetliner strike the World Trade Center on a bright September morning 17 years ago. He quickly parked his car and sprinted to the scene, where he scoured for evidence and helped survivors while dodging falling debris and bodies.
When the first tower collapsed, he dove into a bodega, escaping with his life. What he couldn’t outrun: the toxic cloud of dust.
“We saw him a couple of hours later, and he looked like a snowman, covered head to toe in that stuff,” said Gregory W. Ehrie, a fellow FBI agent who spent several weeks with LeValley digging in the rubble.