The transmissions are another view of how well all of Boston’s various emergency services agencies responded to the April attack.
Dias Kadyrbayev and Azamat Tazhayakov, both 19, face charges of conspiracy to obstruct justice.
Stark images have been made public of the surviving Boston Marathon bombing suspect just as he surrendered to police. The photos were publicized in response to the Rolling Stone magazine cover that some say glamorizes Dzhokhar Tsarnaev.
A Facebook page that was set up calling for a boycott drew more than 58,000 likes and more than 1,000 comments in less than 24 hours.
For the first plea, Dzhokhar Tsarnaev leaned toward a microphone and said, “Not guilty,” in a Russian accent. He then said not guilty repeatedly about a half-dozen more times.
New evidence has emerged in the Boston Marathon bombing investigation that could become the centerpiece in the case against the surviving suspect in the attack.
One of the three college students, accused for covering up for Boston Marathon bombing suspect Dzhokhar Tsarnaev, was released from jail Monday after posting bond.
The official also said that Tsarnaev revealed that the bombs were constructed at his older brother Tamerlan’s residence and that Tamerlan had brought Dzhokhar into the plot a couple of months before.
Azamat Tazhayakov and Dias Kadyrbayev are charged with conspiring to obstruct justice, according to court documents. A third man, Robel Phillipos, is charged with making false statements to federal investigators.
The man who was carjacked by the Boston Marathon bombing suspects broke his silence Tuesday to CBS News.
As federal investigators search for a possible motive, a clearer picture has emerged about Tamerlan Tsarnaev, the older brother in the alleged plot that stunned the the world.
Long Island Rep. Peter King, a member of the House Homeland Security Committee, said such information “definitely would have caused the investigation to go further.”
Sen. Charles Schumer, who is often a staunch supporter of federal agencies, said there are serious questions now about what the FBI knew about the Tsarnaev brothers before the deadly Boston Marathon bombings and ensuing reign of terror.
In Russian, Dzohkhar predicted on Twitter “I will die young.” That tweet came just 13 months before the Boston attacks.
Kelly said the FBI apparently learned of the suspects’ supposed plan at least 48 hours prior to telling the NYPD.