This is a rush transcript from "Your World," April 27, 2015. This copy may not be in its final form and may be updated.
NEIL CAVUTO, HOST: All right, we're showing you the scene earlier today, when this police squad car was attacked by protesters.
There was no officer in that. So, I misspoke. I apologize for that. There have been follow-up attacks on other police vehicles throughout the region as well, but what is now about an eight-block region that I'm told has grown to some 25 blocks.
But we do know that light rail and buses into the downtown Baltimore area have been canceled going in and out and that highway routes 83 and 395 into the city have since been closed, that the University of Maryland at Baltimore has stopped running, is not -- its doors are no longer open for business, the same with T. Rowe Price and a host of other businesses in the area that have decided the better part of valor is to shut down.
Bo Dietl, the former New York City police detective, on the phone with us right now.
All right, Bo, you're the police guy on the scene in the middle of all of this. They're throwing rocks at you. They're turning squads cars upside down. What do you do?
BO DIETL, CHAIRMAN & CEO, BEAU DIETL AND ASSOCIATES: Well, the most important thing you have to realize too is Saturday night -- I saw video from Saturday night outside the ballpark, where they were looting stores. They destroyed about six police cars then, smashing the windows and all that
You saw what you're dealing with then. They should have been a little bit more prepared today for the fact that they knew that it was still going to come. When you get a crowd like this, you get bravery with numbers. You have to disperse these crowds immediately.
You must use tear gas and disperse them. Once you disperse them, these tough guys become the little boys that they are, and they don't have the toughness. They have toughness when they're in a gang. The most important thing is, you can't let them get together and keep that gang together, because that's when the bravery comes out.
You much disperse them right away. And when the mayor came out with that statement about let them destroy things and give them some -- an opportunity to destroy things, that was a wrong precedent. And now some of those guys are out there and they know the cops are not going to arrest them, so they're doing what they can.
CAVUTO: Well, that's coming right from the mayor, right, Bo?
CAVUTO: Stephanie Rawlings-Blake had put out an urging that give space for those who want to protest.
DIETL: No, she actually said -- no, she actually said, give them space so they could...
CAVUTO: Destroy. I should say destroy.
DIETL: Destroy is the word she used.
Now, what they have done is, they have given that precedent now. The word goes out on the street, we're not going to get arrested.
Now, all of a sudden, these kids by themselves who are not tough guys, when they get into a gang, they become a gang tough. And you have to disperse that right away. And this thing could get really ugly. And you know what is going to end up happening?
When you're throwing those rocks at those cops there, that cop that is not responsive, that cop could be in a coma. We know what it is. They're using deadly physical force against those cops. I'm sorry to say it -- and I don't want to say it -- but the word should go out on the street, if they're going to assault cops and try to kill them, the cops will use deadly physical force and do what they have to do to bring peace back to that community.
And the people that live there, they're the people that are suffering right now. They can't go out of their houses. The cops are there for one reason, to get peace and bring calm back into that community. If the cops were wrong and that guy was killed by the cops, then the law and order, the trial, the courts will prevail.
But you can't get any kind of justice by doing these animalistic things. And this if savagery there. And that's all I can say. These are animals, the way they're acting.
CAVUTO: All right. We were showing the police coming up with these handcuff-like devices, getting them ready to take in obviously a number of protesters on the scene. It looked like they were making them by the dozens, maybe more than that.
We're just looking at one area.
But, Alveda, obviously, things escalate.
DR. ALVEDA KING, NIECE OF MARTIN LUTHER KING JR.: It is escalating because the mayor, the figure of authority, said it's OK. We're going to...
CAVUTO: Has she dialed it back since? I haven't heard anything since.
KING: I have not heard it. I have been checking really all the way through to make sure to try to interpret what that meant.
KING: But if you say we're going to give you room to destroy, then that's exactly what they're doing. And that's the message that these kids got.
CAVUTO: It sounded like she said she wanted to let them vent, not knowing that, by letting them vent, that's a license to do...
KING: It's not only a license, but look how expensive it is, the police cars damaged, police officers harmed.
The young people are there and are just totally lawless right now. The people in the community can't leave their houses.
CAVUTO: So, do you agree with that reverend who said, these children don't realize how dangerous things can be?
KING: They don't. They are clueless. They don't know.
CAVUTO: So, what's driving them?
KING: I don't -- I believe there's some outside agitators, as I'm watching that, and that is inciting that riot, because young people are emotional. And someone is stirring that up and firing it up.
CAVUTO: Well, it might have been the mayor. And I have been quoting her a good deal.
But this is from the mayor herself earlier talking about the day and what was an opportunity for protesters to essentially vent. This is the mayor of Baltimore on some recommendations for protesters.