Full coverage: Boston Marathon bombing and its aftermath

In a thick Russian accent — with his head bowed and body shaking — the man who appeared cold and emotionless throughout his trial for bombing the Boston Marathon two years ago stood in federal court Wednesday and apologized for detonating one of two explosives at the historic race.

Two friends of convicted Boston Marathon bomber Dzhokhar Tsarnaev were sentenced Friday to terms ranging from three years to 42 months in prison for helping Tsarnaev and his older brother after the 2013 attack that killed three people and wounded more than 260.

Convicted Boston Marathon bomber Dzhokhar Tsarnaev must pay with his life for the suffering he unleashed at the race finish line two years ago, a federal jury decided Friday, delivering a major victory to the government in the biggest U.S. terrorism prosecution of the post-Sept. 11 era.

On first blush, it seems remarkable: a jury in Massachusetts, a blue-state bastion that doesn’t allow the death penalty for state offenses, sentenced Dzhokhar Tsarnaev to die for his role in the lethal Boston Marathon bombings.

The jury in the Boston Marathon bombing trial completed its first day of deliberations Wednesday afternoon, seeking to find what the judge described as the “proper punishment� for Dzhokhar Tsarnaev, after hearing prosecutors demand a death sentence for “killing innocents� and defense lawyers urge them “to choose life.�

The penalty phase in the Boston Marathon bombing trial hit a roadblock Thursday when the two sides could not agree on whether a famed Catholic nun and anti-death penalty advocate should be allowed to testify about what Dzhokhar Tsarnaev would experience if sentenced to death at the federal government’s execution prison in Terre Haute, Ind.

A federal marshal testified Wednesday that Boston Marathon bomber Dzhokhar Tsarnaev apologized shortly after making an obscene gesture in a jail holding cell, deflating the government’s insistence that he remains defiant and unrepentant for helping to carry out the terrorist attack two years ago.

Dzhokhar Tsarnaev, who for two years has not spoken a word of remorse for the Boston Marathon bombing, privately told a well-known Catholic nun that “no one deserves to suffer� as victims of the attack did, the nun testified Monday.

Close to wrapping up their case, defense lawyers for Boston Marathon bomber Dzhokhar Tsarnaev portrayed their client Tuesday as the product of a troubled and ailing Chechen father who suffered from post-traumatic stress disorder, and an angry, aggressive older brother who often picked fights in Boston.

Five distraught Russian relatives of Dzhokhar Tsarnaev took the witness stand Monday, hoping their words of support and love for the convicted Boston Marathon bomber, translated into English for a Boston jury, would help spare him from the death penalty.

She’s the attorney who helped spare the Unabomber from the death penalty, though Ted Kaczynski never forgave her for trying to make him look insane.

The penalty phase of the trial of convicted Boston Marathon bomber Dzhokhar Tsarnaev was adjourned until Monday after one of the jurors came down with what the judge called a temporary illness.

Joe Rogers and his wife, Kelley, were at home when the phone rang late that night.

Defense lawyers seeking to persuade a jury to spare Dzhokhar Tsarnaev’s life continued Wednesday to blame his dead older brother for the Boston Marathon bombings, insisting he was a Muslim extremist bent on violence long before the April 2013 attack.

Defense lawyers in the Boston Marathon bombing trial used flickering scenes from a surveillance video Tuesday to help capture the troubled relationship between Dzhokhar Tsarnaev and his older brother, Tamerlan.

Hoping to save Dzhokhar Tsarnaev from the death penalty, lawyers for the convicted Boston Marathon bomber aggressively portrayed his older brother, Tamerlan, as the brains and muscle behind the 2013 terrorist attack, revealing for the first time that Tamerlan initially planned to strike in Russia but returned to this country because he could “not find a holy war� there.

Federal prosecutors in the trial of convicted Boston Marathon bomber Dzhokhar Tsarnaev completed the penalty phase of their case Thursday by highlighting the stories of 17 amputees in urging the jury to sentence the 21-year-old Russian immigrant to death.

Defense attorneys for convicted Boston Marathon bomber Dzhokhar Tsarnaev on Wednesday tried to downplay prosecution claims that their client had shown anger and defiance at the U.S. when he raised his middle finger at a surveillance camera, and said he may instead have been upset or depressed over a conflict with a guard.

In a photo never before made public and taken just before his 2013 arraignment for the Boston Marathon bombings, a 19-year-old Dzhokhar Tsarnaev stands in a federal courtroom holding cell, looking directly into the surveillance camera and defiantly flashing his long, thin middle finger.

Each morning around 9 a.m., a courtroom door would swing open and a young man in a sport coat was escorted by beefy U.S. marshals to the defense table.

Days before a jury is scheduled to begin deciding whether to execute Dzhokhar Tsarnaev, the parents of the youngest person to die in the Boston Marathon bombing urged federal authorities to consider taking the death penalty off the table.

At 2:49 p.m. church bells rang throughout Boston on Wednesday as the city hushed for a moment of silence to mark the exact time two years ago when two bombs exploded near the finish line of the Boston Marathon.

For a city still traumatized by the worst terrorist attack on U.S. soil since Sept. 11, 2001, the 30 guilty verdicts announced Wednesday against Boston Marathon bomber Dzhokhar Tsarnaev offered a moment of closure and unity.

After deliberating for more than seven hours Tuesday, a federal jury in the capital murder trial of Russian immigrant Dzhokhar Tsarnaev adjourned for the day without reaching a verdict and will return Wednesday morning to continue considering the fate of the lone defendant in the 2013 Boston Marathon bombing.

The federal jury in the trial of Boston Marathon bomber Dzhokhar Tsarnaev is set to begin deliberations after prosecutors and defense lawyers on Monday offered rival narratives over who was to blame for the April 2013 terrorist bombings at the annual racing event.

From the witness stand at the Boston Marathon bombing trial, the city’s chief medical examiner slipped on a pair of white latex gloves Monday and gingerly prowled around in a large cardboard box.

Masha Gessen does something unexpected with “The Brothers: The Road to an American Tragedy.�

A Boston police officer who helped a transit police officer escape during a shootout after the Boston Marathon bombing last year has himself been shot and critically wounded.

A report analyzing the response to the 2013 Boston Marathon bombings largely praised first responders and paramedics for life-saving measures taken at the site of the explosions, but also raised questions about decisions made by police officers during the chaotic manhunt for the Tsarnaev brothers.

Mark Wahlberg and CBS Films are teaming to make “Patriots’ Day,� a feature film chronicling the 2013 Boston Marathon bombing and the ensuing manhunt for the perpetrators, the studio announced Tuesday.

Minutes after Dzhokhar Tsarnaev was captured hiding in a boat in Watertown, Mass., two Boston police bomb technicians climbed into the craft searching for explosive devices.

The tall, well-built man, dressed in a hooded sweater and carrying a black backpack, bumped into Jeffrey Bauman in the throngs of spectators at the Boston Marathon finish line.

Ten women and eight men, all of them Boston-area residents, were selected Tuesday afternoon as jurors and alternates to hear the case of Boston Marathon bombing suspect Dzhokhar Tsarnaev -- the trial at last getting underway after two months of jury selection and repeated attempts to move the case out of Boston.

A federal appeals court refused late Friday to move the Boston Marathon bombing trial out of Boston, clearing the way for a local jury to decide the fate of Dzhokhar Tsarnaev in the terrorist attack that two years ago killed three and injured more than 260 people.

The federal judge in the Boston Marathon bombing case says he has found 54 of the 70 people needed for a suitable jury pool, and a court official predicted testimony would begin in the “near future.�

A joint report by inspectors general of various intelligence and other federal agencies says the FBI’s investigation of suspect Tamerlan Tsarnaev should have been more thorough.

Months before the Boston Marathon bombings, the older Tsarnaev brother signed forms to legally change his first name in tribute to a slain rebel from Russia’s Dagestan republic.

Florida prosecutor says the agent acted in self-defense in killing Ibragim Todashev, a friend of Tamerlan Tsarnaev.

The world on Thursday celebrated the United Nations-sponsoredInternational Day of Happiness by dancing to the ubiquitous, infectiously upbeat tune, “Happy,� by Pharrell Williams, who is the face of the second annual celebration established by the General Assembly.

There are five well-known stages of grief, from denial and anger through bargaining and depression.

Ask a runner what sets the Boston Marathon apart, and he or she will tell you it’s a people’s race.

BOSTON — This year’s Boston Marathon will have a no-bags policy as part of stepped-up security after last year’s deadly bombing, the Boston Athletic Assn. announced Wednesday.

Attorneys for suspect Dzhokhar Tsarnaev will ask for leniency, arguing he was confused and following orders from his older brother.

Authorities say 264 people were injured in the April bombing. Not counted are the friends and family members who’ve seen their lives change too.

Tens of thousands of people donated money to the One Fund, the charity created by officials after the Boston Marathon bombings.

A Boston Magazine cover of multi-hued sneakers shaped into a heart, framing the headline “We Will Finish the Race,� is drawing acclaim as a symbol of hope and recovery in the aftermath of the deadly marathon bombings.

A man who lost both legs in the Boston Marathon bombings described on Friday how he locked eyes with one of the bombing suspects minutes before the twin explosions took place near the finish line.

BOSTON — The parents of Boston Marathon bombing suspect Dzhokhar Tsarnaev said Saturday they have no immediate plans to travel to the U.S., in part because of the mother’s fears she is also under suspicion.

Richard “Dic� Donohue Jr. came to the edge of death after a bullet to his right thigh severed his femoral vein and artery.

Even before authorities released photos of the suspected Boston Marathon bombers, friends of Dzhokhar Tsarnaev noticed something unusual two days after the bombing, when Tsarnaev showed up with his unruly hair cut short.

Some “non-theist� individuals and groups are aggrieved that not even one seat was reserved for a nonbeliever at the service for victims of the Boston Marathon bombings, despite a request for some recognition from the Secular Coalition for America.

Officials continued to deflect responsibility for burying Tamerlan Tsarnaev on Monday.

MOSCOW -- The father of a man who was shot to death by the FBI while being questioned about his ties to a suspect in the the Boston Marathon bombings said Thursday that photographs of his son’s bullet wounds suggest that he was “executed� by the FBI.

James Costello was waiting at the Boston Marathon finish line when the bomb went off on April 15, leaving him with severe burns on his right arm and leg.

A New York woman who allegedly used forged hospital documents to pose as a victim of the Boston Marathon bombings was arrested Friday after collecting nearly half a million dollars from the fund for victims, Massachusetts Atty.

A Massachusetts State Police photographer is facing an internal investigation after he released photos of suspected Boston Marathon bomber Dzhokhar Tsarnaev to a local magazine, authorities said Friday.

A Massachusetts State Police sergeant faces a discipline hearing Tuesday morning because he released photographs of accused Boston Marathon bomber Dzhokhar Tsarnaev to protest a Rolling Stone magazine cover that many thought glorified the defendant.

The Boston Marathon bombing was named the sports story of the year Friday in a vote conducted by the Associated Press.

BOSTON -- Boston bombing suspect Dzhokhar Tsarnaev may now meet with a mental health consultant without an attorney present, a tweak to special administrative measures put in place to ensure that he cannot incite terror from jail.

Ibragim Todashev was being interrogated in his Orlando, Fla., home by the FBI and Massachusetts police when he was killed early in the morning of May 22.

Marc Fucarile left a Boston hospital Wednesday, the last of those wounded in the bombing that traumatized the city and the nation 100 days ago.

Two friends of Dzhokhar Tsarnaev, accused of bombing the finish line area of the Boston Marathon, have been indicted by a federal grand jury on charges of hindering the investigation into the attack.

A New Jersey woman is the third person to be charged with trying to defraud the One Fund Boston, established to aid people involved in the bombing at the finish line of the Boston Marathon in April.

The Massachusetts police photographer who never sought permission before releasing images of the arrest of the man accused of being the Boston Marathon bomber has been placed on restricted duty with pay pending further investigation of his case, his lawyer said.

WASHINGTON — Dzhokhar Tsarnaev, who is charged with carrying out the bombings last April at the Boston Marathon, disposed of key evidence after the attack by “discarding a remaining bomb detonator and smashing his cellphones,� according to an internal memo approved by Atty.

It was one of the biggest unsolved crimes in recent Boston memory: three men, killed on Sept. 11, 2011, their throats slit, their bodies reportedly covered with marijuana.

A Massachusetts court on Monday issued a default arrest warrant for accused Boston Marathon bomber Dzhokhar Tsarnaev so he can be arraigned on state charges in connection with the killing of an MIT police officer.

WASHINGTON -- The FBI has found female DNA on at least one of the two homemade bombs detonated during the Boston Marathon on April 15, according to a law enforcement official.

Federal prosecutors tangled in court Monday with defense lawyers for Boston bombing suspect Dzhokhar Tsarnaev over the government’s timeline to make a decision on whether to seek the death penalty in the case.

The wounded man in one of the most memorable photos of the aftermath of the Boston Marathon bombing, Jeff Bauman, will publish a book in April 2014, on the event’s anniversary.

John Odom, at the Boston Marathon to cheer on his daughter, was badly hurt by shrapnel from the blasts. After five months of recovery, he comes home.

BOSTON — Slain Boston Marathon bombing suspect Tamerlan Tsarnaev was named as a participant in an earlier triple homicide by a man who was subsequently shot to death while being questioned by authorities, according to a filing made by federal prosecutors in the case against his brother, surviving bombing suspect Dzhokhar Tsarnaev.

WASHINGTON — Dzhokhar Tsarnaev made his first public court appearance Wednesday, leaning over a microphone and repeating again and again in a Russian accent “not guilty� to potential capital murder charges in a federal courtroom packed with victims and their families getting their first look at the man who is suspected of killing three and injuring 260 in the Boston Marathon bombing.

BOSTON -- Newly released court documents describe the extent of injuries to the surviving suspect in the Boston Marathon bombing, including multiple gunshot wounds to his face and a skull fracture.

Video surveillance, a market that was already on an upward trajectory, is expected to receive a big boost in spending following the bombings in Boston.

Boston bombing suspects Tamerlan and Dzhokhar Tsarnaev emerged from turbulence in the former Soviet Union into a hope-filled future in the U.S. Then something changed.

After the first blast, nobody needed to tell Jarrod Clowery to run.

A group of companies that design, manufacture and service orthotic and prosthetic devices has banded together to aid uninsured and under-insured victims of the Boston Marathon bombing who have had limbs amputated and may need years of costly care.

The latest Rolling Stone cover, featuring the angelic face of accused Boston Marathon bomber Dzhokhar Tsarnaev, has managed to accomplish several things.