Authorities continue to investigate more suspicious packages containing explosives that seem to target prominent liberal figures and Democratic politicians. (Video: Joyce Koh, Blair Guild/The Washington Post)

On the Internet and in real life, Cesar Sayoc was not shy about broadcasting his support for Donald Trump and his contempt for those the president might consider enemies.

He plastered stickers across his white van — supportive of Trump — alongside images of the president’s critics with red targets over their faces and a large decal that read “CNN sucks.” On Twitter, the 56-year-old trafficked conspiracy theories and ranted about liberal billionaire George Soros, former president Barack Obama, former secretary of state Hillary Clinton and others whose politics were out of line with his.