Husbands, 23, was supposed to be under house arrest when police say he went to the mall and opened fire.
At least one of the suspects in France had been in contact with Begal, and others had been under police surveillance since his arrest in July, the sources said.
There are still hundreds of political prisoners in jail and hundreds others under house arrest or harassed by police.
"At the current time all three have signed confessions and have been placed under arrest, " Moscow police said on Wednesday.
But within a week of the explosion, Llewelyn was under arrest, after a police patrol noted the registration of the car hired by the student in Aberystwyth.
Police said the arrest was made under the Terrorism Act and was not connected to the Woolwich inquiry.
The whereabouts of Mr. Bo and his family remained unclear, including whether he is under house arrest or has been taken into police custody.
At the time of the shooting, Mr Husbands was under house arrest on another charge, a Toronto police spokesman said.
Police say Mr Starr's arrest falls under the strand of the investigation classed as "Savile and others".
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It was only when he was handcuffed and dragged 500m (500 yards) up the road to the nearest police station that he realised he was actually under arrest.
Police released arrest figures after the protest by anti-capitalists under the banner Brighton Mayday collective ended on Saturday evening.
He was initially placed under house arrest at his home in Islamabad but later transferred to the police headquarters in the city.
"He is now subject to arrest under the Bail Act for breach of these conditions, " police said Wednesday morning.
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Although police came under heavy fire when they first entered the area to try and arrest Mr Coke on Tuesday, correspondents said the situation on Wednesday was mostly quiet.
The arrest is the 17th made under Operation Tuleta, one of three linked Metropolitan Police inquiries into the hacking of computers and phones.
Meanwhile, popular opposition leader Imran Khan said early Sunday that police surrounded his house in Lahore, barged in and told him he was under house arrest.
Under the original version of the law, he said, police officers would have been obligated to arrest a suspected illegal immigrant who approached them after being victimized.
Indonesian police want to have Mr Ba'asyir moved to Jakarta for questioning, or placed under house arrest.
The connections described by Spanish police portray a much closer collaboration than previously known between the eight men, all now under arrest.
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It tells officers not be deterred if they see a "squatter's rights" notice on the door as "the police have lawful authority under section 17 of PACE (the Police and Criminal Evidence Act) to enter the property to make an arrest".
As Pepe Escobar reported in Thursday's Asia Times, the protesters' demands include Khamenei's removal from power, the dissolution of the secret police, the reform of the constitution under anti-regime Ayatollah Hossein Montazeri, who has been living under house arrest for the past 12 years, and the installation of Mousavi as president.
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