The man accused of sending pipe bombs to prominent Democrats and CNN last week had a list of more than 100 people he planned to target, NBC News reported.

Law enforcement will be warning those targeted, including politicians, entertainers and members of the media, of the alleged bomber's intention to mail them crude pipe bombs, a senior law enforcement official told NBC.

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Cesar Sayoc Jr. was charged last Friday with mailing the bombs to more than a dozen targets, including various high-profile Democrats like former President Obama and former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonThe Memo: Trump furor stokes fears of unrest Bloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close MORE.

If convicted on all charges, Sayoc would face more than 50 years in prison, according to authorities.

Sayoc has a lengthy criminal history and has been previously arrested for making bomb threats and for other incidents dating back to the 1990s.

His previous threats have targeted a variety of people, including Florida Power & Light, which he allegedly threatened to blow up while complaining about his utility bill to a customer service representative.

When asked why Sayoc targeted Democrats in his attempted bombing campaign, Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsRoy Moore sues Alabama over COVID-19 restrictions GOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs MORE said last week he "appears to be a partisan" but did not comment further.

The president condemned the attempted attacks shortly after they occurred, calling for unity and more civil rhetoric.

"We have to come together and send one very clear, strong, unmistakable message that acts or threats of political violence of any kind have no place in the United States of America," he said.