Updated at 6:07 p.m] From CNN's Alan Chernoff: Former NYPD Bomb Squad member Kevin Barry says the bomb found in an SUV Saturday night in Times Square "had no known signature," meaning it was not constructed in a fashion used by known terror organizations. In particular, Barry refers to the fact that the bomb had two timers.
"It's the first device of this type in quite a while. So we have no signature yet. Were we to see two or three more of these in the area, or within the U.S. then we might say, 'Listen we have a new group and they have somebody that is building these for them,'” said Barry.
In addition to the timers, bomb designers may differ in “how they twist wires, how they solder them, how they connect batteries, what products they use,” he said. That leads him to believe this was the work of either an individual or a new organization.
Barry says he trained the lead bomb squad technician who handled Saturday's explosive and spoke with him this morning about his dismantling of the device.
He says it did not detonate because the igniter did not have enough energy to detonate the bomb. Instead of detonating, it deflagrated (burned rapidly), Barry said. That would be consistent with the explosions, flames and smoke inside of the SUV that eyewitnesses described.
