Cesar Sayoc, 56, was arrested in Florida on suspicion of sending at least a dozen explosive devices to Democratic political figures and CNN.
He is an outspoken Donald Trump supporter with a long trail on social media. He posted memes attacking some of the targets of the bombs, including Hillary Clinton and Barack Obama, and promoting conspiracy theories about them. And he posted fervent support for Trump, including images of himself at a Trump rally and in a Make America Great Again hat. Authorities also seized a white van covered in political decals.
He had an extensive criminal record, with at least 8 arrests. One was for threatening to bomb a utility company.
He had financial troubles, including a bankruptcy and a foreclosure. He may have been living in the white van.