Some of the 10 suspected mail bombs addressed to high-profile Democrats and others over the last few days were flawed and not capable of exploding, while others have yet to be fully analyzed, several investigators said Thursday.
In some cases, the flaws were substantial. In others, more subtle, they said.
The news, expected to be detailed at a joint NYPD/FBI briefing in New York shortly, comes after investigators said the devices appeared poorly made and that it was unclear if they were hoaxes or simply cases of bad construction. Earlier in the investigation, officials in multiple states had described the items as live explosives and a number of senior bomb techs briefed on the probe said they had all the components necessary for successful explosions.
Investigators cautioned that the analysis is far from complete, and they say anyone who encounters one of the parcels should treat it as dangerous.
None of the 10 seized devices detonated, and no one has been hurt.
The latest development could lend credence to a theory NY Gov. Andrew Cuomo mentioned in an interview with CNN, where one of the devices was sent, Thursday morning.
"There’s a theory that the bombs were not intended to explode, but were intended to intimidate," Cuomo said. "If that is the intent, then this is having the desired intent. And it could actually be fueling the group that’s doing it."
There are no solid leads on a potential suspect or suspect at this point, multiple officials briefed on the investigation said Thursday afternoon. Authorities are looking into whether at least some of the packages were mailed from Florida.
Officials didn't elaborate on the reasoning, but the return address listed on each one was the Florida office of congresswoman and ex-Democratic National Committee chair Debbie Wasserman Schultz. Investigators are looking into any past incidents involving her office to determine if there could be any connections to the current probe, but have said there is no suggestion she had involvement.
As of Thursday afternoon, there have been 10 such packages. Three -- two addressed to former Vice President Joe Biden in Delaware and one addressed to Robert De Niro at a building he owns in Manhattan -- were discovered in a flurry of frenzied hours before 10 a.m. Thursday.
The others came in the prior 72 hours: two were addressed to Rep. Maxine Waters of California; ones were also addressed to Hillary Clinton, former President Obama, ex-Attorney General Eric Holder and former CIA Director John Brennan. The first in the series was a mailbox pipe bomb left at the Westchester County home of billionaire philanthropist George Soros.
According to sources, the explosive devices were made from PVC pipe and contained a timer (likely a digital alarm clock) to set off the detonator. The powder contained in the bombs comes from pyrotechnics. X-rays show there was likely shrapnel inside the PVC pipe, law enforcement officials say.
Meanwhile, investigators are working to glean forensic clues to help identify who sent them, gathering fingerprints and DNA evidence while tracking the origin of the packages and the components used. While some have made note of the fact that the devices were not postmarked, multiple officials have said this was not uncommon, and that because of the soft packaging they could not go through automated sorting machines to have their postage canceled.
Larry Johnson, a former head of criminal investigations for the U.S. Secret Service who also served as a special agent in charge of the presidential protective detail, said it is highly likely that the person or people who built the bombs have been previously flagged by law enforcement.
If you have info that could assist the #FBI's investigation of suspicious packages, call 1-800-CALLFBI (225-5324) or use http://tips.fbi.gov.
Photo Credit: News 4
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