FBI

Watertown resident Andrew Kitzenberg witnessed gun battle that left Tamerlan Tsarnaev dead.

Reddit manager Erik Martin says sorry for "witch hunt" following Boston Marathon bombing.

Fugitive who replaced Osama Bin Laden in Top Ten Most Wanted to be deported.

'Bomber Two' charged with using weapons of mass destruction and malicious destruction of property and will face death penalty if convicted.

Terror suspect cooperating with police and will be tried by federal court.

The @YourAnonNews Twitter account has received £36,000 in funding to set up a website, in what could be the first step of the online hacktivist movement going mainstream.

FBI request for additional information on Tamerlan Tsarnaev unanswered by FSB.

Police recover large cache of weapons from Tsarnaev brothers as prosecutors prepare to file charges against Dzhokhar Tsarnaev.

Lawyers scramble to build criminal case as Republicans call for military trial as an enemy combatant.

Tamerlan and Dzhokhar Tsarnaev believed to have received training in manufacture of bombs.

Parents say sons Dzhokhar and Tamerlan Tsarnaev were set up by the FBI, which has admitted interviewing the elder brother in 2011.

The family of Katherine Russell, 24, who converted to Islam after marrying Boston bomb suspect Tamerlan Tsarnaev, has released a statement describing their horror.

Families deserve answers says president, after capture of second suspect Dzhokhar Tsarnaev.

The London Marathon 2013 starts on Sunday morning, with Mo Farah among the star names. Find out where to watch the race live in the UK.

Dzhokhar Tsarnaev, teenage suspect in Boston marathon bombings, was hiding in a boat parked in a homeowner's backyard in Watertown.

Silver Linings Playbook star lent his support to victims recovering at Boston Medical Center in the wake of tragedy.

Brother of Dzhokhar, still on the run after a shoot out with police, has been identified after being killed by police.

Social media users incorrectlyaccused of Tripathi and Mike Mulugeta of being responsible for bombings at Boston Marathon.

The police operation that closed down Boston has ended with the capture of the remaining suspect. This is how the drama unfolded.

One alleged bomber is believed to be dead or in custody, the second is on the run, following an intense gun battle on MIT campus that left a university police officer dead.

Two suspects wearing baseball caps were caught on CCTV camera minutes before blasts at finish line of Boston marathon.

Barack Obama has delivered a powerful and inspired speech at an interfaith memorial service in Boston in the aftermath of the twin blast at the Marathon's finish line.

Timing of explosions at fertiliser plant near Waco leads police to admit they cannot "rule out sabotage".

A suspect is held over deadly poison sent to US president and Senator Roger Wicker

Two men seen leaving backpacks near finish line of Boston marathon.

Letter received at off-site location away from White House.

Philadelphia's chief medical examiner says he cannot be certain Gosnell aborted live babies - because they had degraded in freezer.

British boxing champion stirs controversy by urging fans to 'think of Syria, Pakistan, Iraq, Palestine and all the countries that are bombarded frequently.'

Boston University student's friend Zhou Danling in stable condition following surgery at a Boston Hospital

FBI suspects explosives were placed in nylon bags or backpacks along with ball bearings and nails, which maimed several victims.