A sketch of assistant US attorney Nadine Pellegrini speaking during the sentencing of Dzhokhar Tsarnaev, who isseen gesturing in a photograph. Photograph: Jane Collins/Reuters

Convicted Boston marathon bomber Dzhokhar Tsarnaev was painted as an “unrepentant killer” by a prosecutor as a jury was shown a photograph of the s(...)

Tatyana McFadden celebrates with Bill Richard, the father of Boston bombing victim Martin Richard, after McFadden won the women’s wheelchair marathon in Boston yesterday. Photograph: Brian Snyder/Reuters

Security was tight yesterday for the second marathon since the Boston bombings as spectators lined the route to cheer on the 30,000 runners.On Boston (...)

In this courtroom sketch, Assistant US Attorney Al Chakravarty is shown pointing to defendant Dzhokhar Tsarnaev during closing arguments in Tsarnaev’s federal death penalty trial in Boston. Photograph: Jane Flavell Collins/AP Photo 1:15

The surviving Boston Marathon bomber was a partner with his co-conspirator brother in a “cold, calculated terrorist act” intended to punish America f(...)

A courtroom sketch shows accused Boston Marathon bomber Dzhokhar Tsarnaev (left) and Judge George O’Toole (top) listening as bombing victim Richard Martin’s father Bill (top right) testifies, during Tsarnaev’s trial at the federal courthouse in Boston, Massachusetts.  Photograph: Jane Flavell Collins/Reuters

Moments after being blasted into the air “like a rocket” in the Boston Marathon bombing, nurse Jessica Kensky saw that her husband’s leg had been blo(...)

 A file photo released in  April 2013 by the Federal Bureau of Investigation shows Boston Marathon bombing suspect Dzhokhar Tsarnaev. The trial of Mr Tsarnaev beings on Wednesday.

Jurors in the trial of the man accused of killing three people and injuring more than 260 in two bombings near the finish line of the 2013 Boston Mara(...)

Meb Keflezighi is congratulated after winning the men’s division of the Boston Marathon. He described the crowd as phenomenal” and said: “I used them to propel me forward.” Photograph: Reuters/Brian Snyder

Record crowds basked in bright sunshine to cheer on runners in the second largest field in the Boston Marathon’s 118-year history as this proud(...)

Dignitaries including US vice-president Joe Biden, survivors and first responders participate in a flag-raising ceremony at the marathon finishing line in Boston, Massachusetts, yesterday, on the first anniversary of the Boston Marathon bombings. Photograph: Reuters/Brian Snyder

Boston paused in silence at 2.49pm yesterday to remember the moment a year ago when three people were killed (...)

Boston Fire Department honor guards (R) relieve Cambridge Police honor guards at the site of one of the two bomb blasts on the one-year anniversary of the 2013 Boston Marathon bombings in Boston, Massachusetts. Photograph: Dominick Reuter /Reuters

Boston began its memorials of last year’s marathon bombing attack, which killed three people and injured 264, on a quiet note today, with mayor(...)

Marty Walsh at his election-night rally following his victory in Boston earlier this month. Photograph: Gretchen Ertl/New York Times

Martin J Walsh, the new mayor of Boston, jokes that it was his two Irish aunts, one travelling from Galway and the other from England, that “put me ov(...)

Dzhokhar Tsarnaev photographed just before his arrest with a sniper’s laser sight trained on his head as he surrenders to authorities on April 19th following a massive manhunt in this handout photo provided courtesy of Massachusetts State Police Sergeant Sean Murphy and Boston Magazine. Photograph: Sgt Sean Murphy/Boston Magazine/Reuters

Accused Boston marathon bomber Dzhokhar Tsarnaev was badly injured when taken into custody by US federal agents in April, with multiple gunshot wounds(...)