http://www.mirror.co.uk/news/world-news/boston-bombers-fbi-hunting-12-strong-1844844
The FBI was last night hunting a 12-strong terrorist sleeper cell linked to the Boston marathon bomb brothers.
Police believe Tamerlan and Dzhokhar Tsarnaev were specially trained to carry out the devastating attack.
More than 1,000 FBI operatives were last night working to track down the cell and arrested a man and two women 60 miles from Boston in the hours before Dzhokhars dramatic capture after a bloody shootout on Friday.
A source close to the investigation said: We have no doubt the brothers were not acting alone. The devices used to detonate the two bombs were highly sophisticated and not the kind of thing people learn from Google.
They were too advanced. Someone gave the brothers the skills and it is now our job to find out just who they were. Agents think the sleeper cell has up to a dozen members and has been waiting several years for their day to come.
A specialist team of CIA and FBI interrogators was yesterday flown to a Boston hospital to grill wounded Dzhokhar, 19, about the secret group. The University of Massachusetts student was caught on Friday after hiding out in a boat parked in a garden in locked down Watertown the day after a gun battle with police left his 26-year-old brother and a rookie cop dead.
Dzhokhar is said to have run his brother over as he escaped in a stolen car while Tamerlan lay handcuffed on the ground. They were carrying six bombs with them at the time, three of which *exploded, as well as a handgun and rifle. The devices were thought to be pipe bombs.
Last night Dzhokhar badly wounded but alive lay handcuffed to his hospital bed under armed guard. The other three arrested in the port of New Bedford are also believed to be of college age.
Dzhokhar even went to a college party two days after the bombs wreaked havoc at the finish line. According to fellow students, he looked relaxed as he joined in a party at the campus on Wednesday night.
Hours later he was involved in the shootout which saw his brother killed.
Investigators have begun piecing together how the well-mannered brothers of Chechen origin were radicalised. Neighbours of the family said older brother Tamerlan had recently become obsessed with Islam. He mysteriously left the US in January last year to spend six months in Russia. Yesterday senior FBI counter-terrorism official Kevin Brock said: Its a key thread for investigators.
It also emerged the Bureau interviewed Tamerlan two years ago, at the request of the Russian government, but could not establish that he had ties to terrorist radicals.
This was despite his worrying Russian-language YouTube page featuring links to extremist Islamic sites and others since taken down by YouTube.
One link showed an hour-long speech by an Islamic teacher called Shaykh Feiz Mohammed, while other videos are labled Terrorists and Islam.
The radical cleric, with links to extremist British Muslims, encouraged his followers to become martyrs for Islam. He said: Teach them this: There is nothing more beloved to me than wanting to die as a mujahid.
Yesterday the brothers mother Zubeidat, speaking from her home in Russia, added further intrigue to her sons murky past when she claimed the boys had been framed by the FBI over the two bombs last Monday that left three dead and 178 injured.
