The line of FBI staffers donned protective suits and combed through the area surrounding the blast site, picking up pieces of shrapnel and other bits of debris before stuffing items in bags for further inspection.
Here, a table with a hole blown through it, there, some batteries, wiring and a containment tube. Investigative photographers snapped pictures of the scene.
“Whatcha got?” one investigator asked a colleague, eying a small burnt piece…