Boston mayor Marty Walsh  with master engraver Sean Egan as Ralph and Rose Ingegneri of Brewster (right) and mayor of Waterford John Cummins (second from left) and chairman of the committee Michael Fitzgerald listen after the Waterford Crystal sculpture were presented at the marathon tribute at MIT’s Endicott House in Dedham/. Photograph: Ron Schloerb/Cape Cod Times

Two crystal sculptures made by a Waterford man to honour the three people killed in the 2013 Boston bombings and an MIT officer who died in a related (...)

Police officers show their respect at the funeral of murdered Garda Anthony Golden on October 15th. Photograph: Cathal McNaughton/Reuters

The “overwhelming majority” of Irish people and Garda members do not want an armed police force in the Republic, the former Garda Inspectorate head Ka(...)

A billboard in the US showing  the image of the toddler found on a Boston Harbor beach.

Police in the US believe that the 2-and-a-half-year-old girl whose remains were found on a Boston Harbor beach three months ago was murdered and arres(...)

Police and FBI search the home of a man who was under investigation by the US Joint Terrorism Task Force in Everett, Massachusetts. The suspect Usaama Rahim, was shot and killed earlier in the day in Boston when approached by police officers. Photograph: CJ Gunther/EPA

A man who was under 24-hour surveillance by terrorism investigators has been shot and killed in Boston after he lunged with a knife at a police office(...)

A bag sits on the road near the finish line of the Boston Marathon. The bag was later detonated by the bomb squad after inspection. Photograph: Brian Snyder/Reuters

A man has been arrested by police in Boston after a backpack was left close to the finish line of the Boston Marathon route, a year after three(...)

Federal prosecutors charged the surviving man suspected of bombing the finish of last week's Boston marathon with one count of using a weapon o(...)

A US military Blackhawk helicopter flies over the search area for Boston Marathon bombing suspect Dzhokar Tsarnaev in Watertown, Massachusetts, during the lockdown last Friday. Photograph: Reuters/Lucas Jackson

At 6am on Friday the phone rang. It was a message from the Boston police: “Lock your doors and stay inside.” Within minutes everyone in (...)

Runner Jason Darnall of Kentucky, who ran the Boston Marathon in 2012 but chose to run the London Marathon this year, wears a black ribbon at the start of the London Marathon. Photograph: Luke MacGregor/Reuters

London Marathon runners pounded the capital’s streets today after earlier holding half a minute’s silence in memory of those who died in the B(...)

People  on  Hemingway Street in the Fenway neighbourhood  celebrate the capture of the second Boston Marathon bombing suspect Dzhokhar  Tsarnaev last night. Photograph:  Kayana Szymczak/Getty Images

Bostonians breathed a sign of relief after a long, shattering week and then celebrated the dramatic capture of the surviving Boston Marathon bo(...)

Police with guns drawn search for a suspect in Watertown, Massachusetts, early yesterday. Photograph: Mario Tama/Getty Images

A police helicopter circled overhead. The sky buzzed and blue lights flashed from the ground on the campus of Massachusetts Institute of Techno(...)