Attorney General Eric Holder will be on the ground soon in Ferguson, Missouri, after being directed by President Obama to personally oversee the federal investigation of the killing of Michael Brown by a police officer.

Tuesday night was relatively calm on the streets of Ferguson, as a grand jury is set to convene today to begin hearing evidence in the death of the unarmed 18-year-old. reported:

From the White House, Obama is keeping a reserved tone by calling for calm on both sides, urging protesters to stay peaceful and police to show restraint. But at the Justice Department, Holder is committing what is being described as an “extraordinary” effort to investigate the local case.

“They’re basically flooding the zone [with investigators],” Thomas Dupree, former deputy assistant attorney general under the George W. Bush administration, told Fox News. “It’s an extraordinary level of commitment for an incident of this nature.”

Dupree said the response shows this case is something Holder “is personally invested in.”

Holder will visit Ferguson on Wednesday to meet with the FBI agents and other Justice Department personnel on the scene, as well as local community leaders. Holder’s Justice Department already has opened a federal civil rights probe – according to Politico, federal investigators are conducting hundreds of interviews and turning up information the local police haven’t – and conducted an additional autopsy of 18-year-old Michael Brown’s body.

A top DOJ official is heading to Ferguson Tuesday in advance of Holder’s arrival to work with local police.

Whether Holder and his department will ease or inflame tensions remains to be seen – it’s the same question that hangs over Missouri Gov. Jay Nixon’s decision to call in the National Guard.

Dupree voiced concerns that Holder is sending a signal to his department that there is a “correct outcome.”

“I don’t want to say they’ve prejudged it, but the statements he’s saying I think could lead people to conclude that there’s a right way and a wrong way to do things in the mind of the attorney general,” he said.

Holder said Monday that the “full resources” of DOJ are being committed, including more than 40 FBI agents on the ground.

On America's Newsroom this morning, we heard Bill O'Reilly's thoughts on what has unfolded in recent days on the streets of Ferguson. He said all "fair-minded Americans" should be concerned when someone is shot six times by a police officer, and peaceful protests are justified.

But he blamed the "hardcore anarchists and anti-American police crew" for the worst of the violence and the looting of local businesses. Then he called out Al Sharpton and other "agitators" for whipping up anger without knowing the facts, which he argues encourages people to break the law.

"That's just disgusting. One of the worst things that we saw was that looting of the liquor store where there was actually a guy with a gun shooting the lock off the door. This is really beyond the pale. These people, are they protesting police violence? Are they protesting the death of this young man? No, they're not. They're stealing stuff, they're looting stuff. They're thugs. So I think everybody has really got to put this into perspective," said O'Reilly.

Bill Hemmer pointed out that many of those arrested are from outside Ferguson. O'Reilly said "The Factor" is investigating the records of some of those arrested and he'll have more info on that tonight on the show.

"Wait til you see.These aren't regular folks. These are folks in there to cause trouble. And they got the idea by the racial agitators, who show up and say, oh there's been an injustice," said O'Reilly, adding that the amount of murders by cops each year is "infinitesimal" compared to the millions of arrests across the country.

"But if you listen to the racial agitators, this is happening every day, it's happening in every city. So dishonest."

O'Reilly agrees with Holder going to Ferguson, saying his presence there is a "good thing." He said Holder is doing his job, sending a signal to Americans that Brown's death is serious and that the Justice Department will get to the bottom of it.

Watch the analysis above, and tune in for a must-see O'Reilly Factor, tonight at 8p ET as Bill returns from his vacation early to cover Ferguson and the ISIS threat.

O'Reilly also weighed in on the beheading of an American journalist by ISIS terrorists. Watch that analysis here.