Boston-area man pleads guilty to mailing letters laced with white powder to Trump's sons
© Getty

A Massachusetts man pleaded guilty on Wednesday to mailing threatening letters to Eric TrumpEric Frederick TrumpDemocrats introduce bill to block taxpayer-funded spending at Trump properties WaPo gives Eric Trump 4 Pinocchios after ObamaCare website claim Pompeo jokes about speaking at Trump hotel: 'The guy who owns it' is 'going to be successful' MORE and Donald Trump Jr.Donald (Don) John TrumpDemocrats introduce bill to block taxpayer-funded spending at Trump properties Trump dismisses NYT explanation on Kavanaugh correction The Hill's Morning Report - Trump takes 2020 roadshow to New Mexico MORE, as well as local law enforcement officials.

The Department of Justice (DOJ) announced that Daniel Frisiello, 25, pleaded guilty to 13 counts of mailing a threat to injure, and six counts of false information and hoaxes. He has been under house arrest since he was charged in March, and will be sentenced in January.

Frisiello, of Beverly, Mass., mailed a letter containing to white powder to Eric Trump in March 2016 that warned if his father, then a candidate for the Republican presidential nomination, did not drop out of the race, the next letter would not be fake, according to the DOJ.

ADVERTISEMENT

In February, Frisiello sent another threatening letter containing white powder to Donald TrumpDonald John TrumpJimmy Carter: 'I hope there's an age limit' on presidency White House fires DHS general counsel: report Trump to cap California trip with visit to the border MORE Jr, criticizing the president's eldest son as an "awful, awful person."

Trump Jr. was not home at the time, and his then-wife opened the envelope. She began feeling ill and was taken to the hospital as a precaution. The substance was later deemed nonhazardous.

The DOJ said that in the roughly two years between letters to members of the Trump family, Frisiello sent letters to the head of law enforcement agencies in Connecticut and Rhode Island who were involved in an investigation into a Vermont man, Nathan Carman. Carman allegedly killed his own mother and grandfather.

Frisiello said those officials would end up "at the bottom of the sea" or with a "bullet in [his] brain" if they did not drop their investigation, according to the DOJ.