Boston Marathon Bombings: FBI Hunts Terror ‘Sleeper Cell’ Linked to Tsarnaev Brothers
The FBI is hunting a 12-man terrorist “sleeper cell” linked to the brothers suspected of carrying out the Boston bombings.
The Bureau believes that Tamerlan and Dzhokhar Tsarnaev received training in bomb-making before they carried out the attack, which killed three people.
Tamerlan, 26, was killed in a shoot-out with police in the early hours of Friday. His brother Dzhokhar is in intensive care at a Boston hospital, and remains unable to speak due to gunshot wounds to the neck.
It emerged that a man and two women were arrested 60 miles from Boston in the port of New Bedford in the hours before Dzhokhar’s capture. The three are believed to be of college age.
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.”