>> reporter: a frequent chant at the president's rallies. sayoc attended one of those rallies in melbourne, florida, in 2017, and held a sign with the same message. his twitter account included memes attacking billionaire investor, george soros. one of the targets of the alleged bombings. online records show that sayoc had an extensive arrest record across two states, including grand theft, battery, fraud, drug possession, and one in miami in 2002, according to a police report he threatened to blow up a florida utility company worse than september 11th. he pleaded guilty and was sentenced to a year of probation. he now faces five federal charges, and up to 48 years in prison. the defendant's conduct as charged is cowardly and reprehensible and totally anathema to our democracy. >> reporter: but the threat may not be over. even after sayoc was arrested, another suspicious package was intercepted in california. authorities say this one was