Federal authorities on Friday captured a Florida man with a criminal history and a fervor for President Donald Trump and accused him of sending at least 13 mail bombs to prominent Democrats, capping a nationwide search in a case that spread fear of election-season violence with little precedent in the U.S.

Justice Department officials announced five federal charges against Cesar Sayoc, 56, of Aventura, Florida, and revealed that DNA and a fingerprint found on an envelope package helped them identify the suspect after a five-day, coast-to-coast investigation. Even as he was arrested and charged, investigators scrutinized new suspicious packages believed to be tied to his plot.

FBI officials did not disclose a motive, although Attorney General Jeff Sessions suggested politics may have played a role, noting Sayoc appeared to be a “partisan.” Those who saw him in the neighborhood, unmistakable in a white van plastered with Trump’s image and political stickers, described him as unsettling and troubled.

Sayoc’s social media profiles portray a deeply disaffected conservative who trafficked in online conspiracy theories, parody accounts and name-calling. He called a Florida school shooting survivor a “fake phony,” peddled theories about George Soros, the billionaire political donor targeted this week by a package bomb and denigrated other Democrats who were later the intended recipients of explosive packages.

An amateur body builder and former stripper who once spent time on probation for a bomb threat charge, Sayoc first registered as a Republican voter just ahead of the March 2016 Republican primary and quickly identified himself as a proud Trump supporter, tweeting and posting on Facebook videos that appear to show him at Trump rallies.

He appeared to be to living in his van, showering on the beach or at a local fitness center.

Sayoc’s arrest Friday was a major breakthrough in the nationwide manhunt following the discovery of explosive devices — none of which detonated — addressed to prominent Democrats and other frequent targets of conservative ire, including former President Barack Obama, former Vice President Joe Biden, Hillary Clinton and the cable network CNN. On Friday, new packages addressed to New Jersey Sen. Cory Booker and former National Intelligence Director James Clapper were intercepted — both similar to those containing pipe bombs discovered earlier in the week. Investigators in California scrutinized a package sent to Democratic Sen. Kamala Harris, her office said, and one sent to Tom Steyer, a billionaire businessman who has campaigned for months for Trump’s impeachment.

…APnews