President Barack Obama called Massachusetts Governor Deval Patrick and Boston Mayor Thomas Menino on Friday to offer ongoing federal help in the Boston bombing investigation, and to express condolences for a police officer killed in the search for suspects.
A 19-year-old college student wanted in the Boston Marathon bombings was taken into custody Friday evening after a manhunt that left the city virtually paralysed and his older brother and accomplice dead. Tales of 2 brothers suspected in the Boston bombing
Below are the main developments since the double marathon bombing in the US city of Boston that left three dead and around 180 wounded.
An uncle of the Boston Marathon bombing suspects on Friday said the brothers had brought shame to the family and the entire Chechen ethnicity.
Moments after investigators went before television cameras to broadcast photos of the two men in ball caps wanted for the Boston Marathon bombing, queries from viewers started cascading in - 300,000 hits a minute that overwhelmed the FBI's website.
US President Barack Obama vowed to find out what turned two young US residents accused of the Boston bombings to violence, after the second suspect was captured alive, ending a week of horror.
Three people in New Bedford, Massachusetts were questioned and released on Friday in connection with the Boston Marathon bombings, law enforcement officials said.
Noisy celebrations erupted on the streets of Boston late Friday after the second suspected bomber of the city's famed marathon was arrested.
Just hours after Monday's Boston Marathon bombings, one of the brothers accused of staging the attack urged his followers on Twitter to "stay safe people." Friends of Tsarnaev confirmed he was an active Twitter user, firing off messages under the handle @J_tsar.
The FBI in 2011 interviewed one of the brothers suspected in the deadly Boston Marathon bombings, a US law enforcement source said on Friday, a disclosure that could raise questions about whether the government missed potential warning signs about the men's behavior.
An ethnic Chechen teenager suspected of conducting the Boston marathon bombings is in a serious condition and being treated in hospital after his dramatic capture, police said on Friday.
Boston Marathon bombing suspect Dzhokhar Tsarnaev was at the University of Massachusetts Dartmouth this week after the explosions killed three people and wounded more than 180 others, his classmates told The Associated Press on Friday.
The FBI on Friday removed a computer from the US home of a sister of the Boston Marathon bombing suspects. Police said she was cooperating with the investigation and was "heartbroken, surprised and upset," though she told reporters she wasn't sure the accusations against her brothers were true.
Boston bombing suspects Dzhokhar and Tamerlan Tsarnaev are Muslims of Chechen origin who came to the United States a decade ago but remained attached to their war-torn homeland.
Around 7pm on Thursday night, social media sites like Twitter and Reddit lit up with a sensational rumor: that Sunil Tripathi, a student who had vanished weeks ago, was one of the suspects accused of bombing the Boston Marathon.