Former law enforcement and terrorism officials analyze the response of authorities after a deadly confrontation with the Boston Marathon bombing suspects.
Here are excerpts from those interviews on CNBC.
Authorities said they were looking for one of the Boston Marathon bombing suspects Friday morning in the area of Watertown, Mass., after a violent confrontation overnight left the second suspect dead.
(Read More: One Boston Marathon Suspect Dead, Another at Large )
Officials said the two suspects killed an MIT police officer, injured a transit officer in a firefight, and threw explosive devices at police during their getaway.
Public transportation in Boston was shut down while the manhunt continued. Residents were urged to to stay indoors. MIT and Harvard are among the colleges that have canceled classes.
Former law enforcement and terrorism officials analyzed the fluid situation on CNBC. Here are excerpts from those interviews:
6:19 a.m. ET - Roger Cressey, former National Security Council official in the Clinton and Bush administrations and current NBC News consultant:
"It's remarkable development that it happened so quickly. If this was the result of the news conference yesterday where the FBI publicized both photos, we see the benefit of that."
"The FBI won't have released the pictures if they had other leads. The whole purpose of doing it was to get the public involved. If anyone is second-guessing right now, "A" they're foolish and "B" if the reason these individuals are caught it's because of the action yesterday."
6:03 a.m. ET - Jeff Lanza, former FBI Agent:
"It's possible they did it themselves. But my thought is there is other people involved from a direction standpoint, an organization standpoint. ... Sounds to me like this is a bigger thing. But we don't know that yet. The police and the FBI are going to be working hard over the next several days."
"[Authorities] are going to have the names and they can certainly trace back the history of when they came into the country. Were they students? Did they just get here? There are going to be paper records, electronic records of everything that lead up to them coming to the United States. So they'll get that all figured out in time."
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image: © Andrew Shiue