UPDATE 6/27/13 @ 2:30 p.m.
BOSTON (AP) - A federal grand jury has returned a 30-count indictment against the surviving suspect in the Boston Marathon bombings.
Dzhokhar Tsarnaev was indicted Thursday on charges including using a weapon of mass destruction and bombing a place of public use, resulting in death.
Three people were killed and more than 260 injured in twin explosions near the finish line of the marathon.
Tsarnaev's older brother, Tamerlan Tsarnaev, was killed following a shootout with police on April 19.
Dzhokhar Tsarnaev was captured hiding in a boat. According to the indictment, he wrote messages on the inside of the boat that said, among other things, "The U.S. Government is killing our innocent civilians" and "We Muslims are one body you hurt one you hurt us all."
Azamat Tazhayakov and Dias Kadyrbayev are charged with conspiring to obstruct justice.
A third man, Robel Phillipos, is charged with making false statements to federal investigators.
An FBI affidavit says the three men removed bombing suspect Dzhokhar Tsarnaev's backpack from his dorm room at the University of Massachusetts at Dartmouth three days after the bombing.
The affidavit says Tazhayakov and Kadyrbayev agreed to get rid of it after concluding from news reports that Tsarnaev was one of the bombers.
A court appearance for the three is scheduled for Wednesday afternoon.
In a tweet Wednesday morning, the police department says only that three more suspects are in custody and more details will follow. Police spokeswoman Cheryl Fiandaca confirmed the tweet but referred all other questions to the FBI.
Three people were killed and more than 260 injured on April 15 when two bombs exploded near the finish line.
Suspect Tamerlan Tsarnaev died after a gunfight with police several days later. His brother, Dzhokhar Tsarnaev, was captured and lies in a hospital prison.
Both are Russian natives who lived for several years in the U.S. They are accused of using a weapon of mass destruction.
The one-minute silent tribute to victims is scheduled for 2:50 p.m. and will be followed by the ringing of bells in Boston and elsewhere in Massachusetts.
It marks one week since the attacks that killed three people and wounded more than 180 others.
Patrick issued the call Sunday in a joint appeal with Boston Mayor Thomas Menino and One Fund Boston, a charity set up to help victims of the bombings.
Patrick and Menino say they are humbled by support from the public and the business community.
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The administration has indicated it intends to move quickly to build a criminal case against Dzhokhar Tsarnaev. But investigators plan to first question him without informing him of his legal rights to remain silent and have an attorney present.
Several Republican lawmakers are criticizing the administration's approach because it would afford Tsarnaev more rights than he deserves.
The federal public defender for Massachusetts called for the quick appointment of a lawyer to represent Tsarnaev because of serious issues involving his interrogation in the absence of a lawyer.
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Boston Police Commissioner Ed Davis says the suspect, Dzhokhar Tsarnaev was hospitalized late Friday in serious condition.
His brother, 26-year-old Tamerlan, was killed earlier Friday in a furious attempt to escape police.
The brothers are suspects in Monday's marathon bombings, which killed three people and wounded more than 180 others.
The men are also suspected of killing a Massachusetts Institute of Technology police officer in his vehicle late Thursday.
Police announced via Twitter that Dzhokhar Tsarnaev was in custody. His brother, 26-year-old Tamerlan, was killed Friday in a furious attempt to escape police.
The brothers are suspects in Monday's marathon bombings, which killed three people and wounded more than 180 others. The men are also suspected of killing a Massachusetts Institute of Technology police officer in his vehicle late Thursday.
Authorities in Boston had suspended all mass transit and warned close to 1 million people in the entire city and some of its suburbs to stay indoors as the hunt for the remaining suspect went on.
The official said he was briefed on the situation and spoke on condition of anonymity because he's not authorized to discuss it publicly.
The official does not know if Dzhokhar Tsarnaev is dead or alive.
Authorities are telling residents of the area to stay indoors.
The burst of activity came at the end of a tense day in and around Boston, and less than an hour after police announced that they were scaling back the hunt because they had come up empty-handed following an all-day search that sent thousands of SWAT team officers into the streets and paralyzed the metropolitan area.
Emergency and military vehicles are speeding through town. Police tell The Associated Press that shots have been fired.
State police spokesman David Procopio says there is "renewed activity in Watertown related to today's events."
Authorities are looking for 19-year-old college student Dzhokhar Tsarnaev. Authorities are telling residents of the area to stay indoors.
Emergency and military vehicles are staged throughout town.
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Authorities urged residents in Watertown, Newton, Waltham, Belmont, Cambridge, Arlington and the Allston-Brighton neighborhoods of Boston to stay indoors. All mass transit was shut down.
At least a quarter of a million people live in those suburbs. Many people in the city of Boston and surrounding areas rely on the Massachusetts Bay Transit Authority to get to work.
The announcement Friday morning comes hours after the killing of one suspect, known as the man in the black hat from marathon surveillance footage. The man in the white hat is on the loose and police are calling him a "terrorist" who came here "to kill."
A law enforcement intelligence bulletin obtained by the AP identified the surviving bomb suspect as Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass.
Two law enforcement officials told AP that Tsarnaev and the other suspect who was not immediately identified have been living legally in the U.S. for at least one year and are brothers.
Residents of the Boston suburb of Watertown have been advised to keep their doors locked and not let anyone in.
The Middlesex district attorney says the two men are suspected of killing an MIT police officer at the college late Thursday, then stealing a car at gunpoint and later releasing its driver unharmed. Hours earlier, police had released photos of the bombing suspects and asked for the public's help finding them.
Authorities say the suspects threw explosives from the car as police followed it into Watertown. The suspects and police exchanged gunfire and one of the suspects was critically injured and later died.
Police say the suspect on loose is a "terrorist" who "came here to kill people."
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