Identified as Cesar Sayoc, the suspect in mail bomb case has been charged with 5 federal crimes and faces up to 48 years in prison, the Department of Justice said, stressing the defendant is "innocent until proven guilty".
Another suspicious package was intercepted in south Florida, addressed to New Jersey Senator Cory Booker. A 12th package was addressed to Clapper at cable network CNN and was intercepted at a New York City post office, a federal law enforcement official said.
Attorney General Jeff Sessions said Friday the Justice Department was dedicating every available resource to the investigation "and I can tell you this: We will find the person or persons responsible".
The FBI has reportedly been searching a mail facility in Florida for clues about the packages.
Court records show Sayoc has a history of arrests.
Wray added that "there is also a possible DNA connection between samples collected from pieces of two different IEDs mailed in separate envelopes, and a sample previously collected from [the suspect] in connection with an earlier arrest down in Florida".
Just a couple of hours before today's arrest, in an early Friday morning tweet President Trump referred to the terrorist acts as "this bomb stuff" and inferred that the attacks were a false flag created to slow down Republicans' momentum leading into the midterms.More news: Horner: Verstappen ‘rode the storm’ during tough start to the year
More news: US, Mexico negotiate options for handling migrant caravan
More news: PM extraordinary leader of Pakistan: Info Minister
In 2002, he was arrested on a felony charge listed as "Threat to Bomb". He reprised the phrase "fake news" that he notably refrained from uttering on Wednesday at his previous rally in Wisconsin just hours after a mail bomb was delivered to CNN's studios in NY.
The first bomb discovered was delivered Monday to the suburban NY compound of Soros, a major contributor to Democratic causes.
Wray declined to say whether the devices could have detonated, saying that investigators are "still trying to determine whether or not they were functional".
The number of suspicious packages has climbed to at least 14, with additional suspicious packages addressed to U.S. senator Cory Booker and former U.S. director of national intelligence James Clapper. Maxine Waters was key to cracking the case, FBI Director Christopher Wray said.
Senator Mark Warner, the top Democrat on the Senate Intelligence Committee, told MSNBC on Friday that the mail bombs were stoking fear across the county and that United States leaders, including Trump, must reassure the public.
The return address on all packages was of Congresswoman Debbie Wasserman Schultz (D-Florida). They were being examined by technicians at the FBI's forensic lab in Quantico, Virginia.
The U.S. holds elections November 6 that could bring a change of political party control to Congress. He also has been accused in the past of threatening to use a bomb. Trump responded on Twitter by blaming the media for stoking a hostile political climate, which prompted Brennan to tell Trump to "Stop blaming others" and "Look in the mirror".