BOSTON (AP) -- Seven days after the Boston Marathon bombings, the city planned to mark the traumatic week with mournful silence and a return to its bustling commute.
Massachusetts Gov. Deval Patrick has asked residents to observe a moment of silence at 2:50 p.m. Monday, the time the first of the two bombs exploded near the finish line. Bells will ring across the city and state after the minute-long tribute to the victims.
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Many Boston residents are returning to the workplaces and schools for the first time since a dramatic week came to an even more dramatic end.
Authorities on Friday had made the unprecedented request that residents stay at home during the manhunt for suspect Dzhokhar Tsarnaev. He was discovered that evening hiding in a boat covered by a tarp in suburban Watertown. His older brother Tamerlan was earlier killed during a getaway attempt.
"It's surreal," said Barbara Alton, as she walked her dog along Newbury Street. "But I feel like things are starting to get back to normal."
In another sign of progress, city officials said they are beginning the process of reopening to the public the six-block site around the bombing that killed three people and wounded more than 180. The announcement came Sunday, a day when people could still watch investigators at the crime scene work in white jumpsuits.
Tsarnaev remained hospitalized and unable to speak, with a gunshot wound to the throat. He was expected to be charged by federal authorities. The 19-year-old also is likely to face state charges in connection with the fatal shooting of MIT police officer Sean Collier in Cambridge, said Stephanie Guyotte, a spokeswoman for the Middlesex District Attorney's office.
A private funeral was scheduled Monday for Krystle Campbell, a 29-year-old restaurant worker killed in the blasts. A memorial service will be held that night at Boston University for 23-year-old Lu Lingzi, a graduate student from China.
City churches on Sunday paused to mourn the dead as the city's police commissioner said the two suspects had such a large cache of weapons that they were probably planning other attacks.
After the two brothers engaged in a gun battle with police early Friday, authorities found many unexploded homemade bombs at the scene, along with more than 250 rounds of ammunition.
Police Commissioner Ed Davis said the stockpile was "as dangerous as it gets in urban policing."
"We have reason to believe, based upon the evidence that was found at that scene -- the explosions, the explosive ordnance that was unexploded and the firepower that they had -- that they were going to attack other individuals. That's my belief at this point." Davis told CBS's "Face the Nation."
On "Fox News Sunday," he said authorities cannot be positive there are not more explosives somewhere that have not been found. But the people of Boston are safe, he insisted.
Dzhokhar and Tamerlan Tsarnaev are ethnic Chechens from southern Russia. The motive for the bombings remained unclear.
Sen. Dan Coats of Indiana, a member of the Senate Intelligence Committee, said the surviving brother's throat wound raised questions about when he will be able to talk again, if ever.
The wound "doesn't mean he can't communicate, but right now I think he's in a condition where we can't get any information from him at all," Coats told ABC's "This Week."
It was not clear whether Tsarnaev was shot by police or inflicted the wound himself.
In the final standoff with police, shots were fired from the boat, but investigators have not determined where the gunfire was aimed, Davis said.
In an interview with The Associated Press, the parents of Tamerlan Tsarnaev insisted Sunday that he came to Dagestan and Chechnya last year to visit relatives and had nothing to do with the militants operating in the volatile part of Russia. His father said he slept much of the time.
A lawyer for Tamerlan Tsarnaev's wife told the AP Sunday night that federal authorities have asked to speak with her, and that he is discussing with them how to proceed.
Attorney Amato DeLuca said Katherine Russell Tsarnaev did not suspect her husband of anything, and that there was no reason for her to have suspected him. He said she had been working 70 to 80 hours, seven days a week, as a home health care aide. While she was at work, her husband cared for their toddler daughter, he said.
The younger Tsarnaev could be charged any day. The most serious charge available to federal prosecutors would be the use of a weapon of mass destruction to kill people, which carries a possible death sentence. Massachusetts does not have the death penalty.
Across the rattled streets of Boston, churches opened their doors to remember the dead and ease the grief of the living.
At the Cathedral of the Holy Cross, photographs of the three people killed in the attack and a Massachusetts Institute of Technology police officer slain Thursday were displayed on the altar,