The CNN bureau in NY received a package addressed to Brennan, who has appeared as a CNN analyst, leading police to evacuate the Time Warner building in a busy Manhattan neighborhood near Central Park.
All the packages were sent in manila envelopes with bubble wrap, marked with computer-printed address labels. De Niro, a vocal Trump critic, received a standing ovation at the 2018 Tony Awards for saying, "f-k Trump".
CNN's NY bureau in midtown Manhattan was also reportedly sent a package.
Neither bomb got close to its intended target, and neither contained a written message, according to law enforcement officials, but the twin discoveries led to other undetonated devices being found elsewhere, including in the mailroom at CNN's NY headquarters and a district office of Rep. No postmark is visible on the front of the De Niro package, similar to some of the others, the sources said. "Clean up your act....try to act Presidential".
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The Queen inherited the necklace following her mother's death in 2002, but has not been photographed wearing it. It was a favourite piece of the Queen Mother's but hasn't been seen publicly since the monarch inherited it.
The package sent to CNN, which Mr Trump has frequently derided for its coverage of him, contained an envelope of white powder that experts were analysing, New York City Police Commissioner James O'Neill said.
This report comes the day after a flurry of reports as officials discovered suspicious packages containing pipe bombs sent to Democratic leaders. Each listed Debbie Wasserman Schultz, former chairwoman of the Democratic National Committee, as the sender, including misspellings of her last name, the Federal Bureau of Investigation said.
Also Thursday, a suspicious package addressed to former Vice President Joe Biden was found in DE, law enforcement officials said.
"A very big part of the Anger we see today in our society is caused by the purposely false and inaccurate reporting of the Mainstream Media", he tweeted.
"Our baby-in-chief - the j***-off-in-chief, I call him - has put the press under siege, ridiculing it and trying to discredit it through outrageous attacks and lies", De Niro said.
The package at De Niro's building on Greenwich Street had the same stamps and return address for Wasserman Schultz in Florida.
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Up front we were obviously looking for wickets because we felt that that was the only way to win the game. After a commendable performance in the 2-Test series against West Indies in Guwahati .
"We will bring them to justice", President Trump said Wednesday night during a rally in Wisconsin.
The images of two devices - one found Monday at the home Soros and one sent to CNN's NY office on Wednesday - had the appearance of real devices that would cause serious bodily injury or death, said Ryan Morris, founder of Tripwire Operations Group, a company that provides explosives training to law enforcement and military officials.
The FBI late Wednesday confirmed that two additional packages, similar in appearance to the others, were addressed to Waters.
But Democratic Senate and House leaders Chuck Schumer of NY and Nancy Pelosi of California said Trump's words "ring hollow". They noted the president's recent praise of a GOP congressman who body-slammed a reporter, among other Trump statements. "The president is certainly not responsible for sending suspicious packages to someone no more than Bernie Sanders was responsible for a supporter of his shooting up a Republican baseball field practice past year".
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He has 7 of them in his different cars, however, didn't have it in the new McLaren, which he says was delivered from California. The actor was released the same day in just enough time to make it to the set of Law & Order: SVU .