Eldest Boston bomber was thrown out of his mosque for 'raged filled rant' against Martin Luther King three months ago - as FBI hunts mysterious religious leader who 'brainwashed' him

Tamerlan Tsarnaev was ejected from his Cambridge, Massachusetts mosque three months ago

Became enraged after the imam held up Martin Luther King Jr. as an example of a man to emulate

It has been claimed that Tamerlan was radicalized inside the U.S. by an unidentified mysterious religious leader



Boston marathon bomber Tamerlan Tsarnaev was thrown out of his local mosque for 'crazy' behavior after getting involved a 'shouting match' with his imam according to one member of the congregation.



Tamerlan Tsarnaev was ejected from his Boston mosque for aggressive behavior after insulting Martin Luther King Jr. during a Friday prayer service three months ago

Described as being full of rage by a worshiper who would give his name only as Muhammad, Tamerlan was ejected from the Islamic Society of Boston Cultural Center three months ago for claiming that Martin Luther King Jr. was not a man Muslims should look to emulate.



This revelation comes as Ruslan Tsarni, an uncle of Tamerlan, claimed that his nephew had fallen under the spell of a mysterious religious leader in Cambridge, Massachusetts, who radicalized him and his brother Dzhokhar into committing Monday's terror outrage.



The dramatic confrontation between Tamerlan and his imam began when the 26-year-old interrupted a solemn Friday prayer service three months ago.



The imam had just offered up assassinated civil rights icon Martin Luther King Jr. as a fine example of a man to emulate - but this reportedly enraged Tamerlan.



'You cannot mention this guy because he’s not a Muslim!' Muhammad recalled Tamerlan shouting, shocking others in attendance according to the LA Times.

Kicked out of the mosque for his outrageous behavior, Tamerlan did return to the prayer service after his outburst according to Muhammad.



'He’s crazy to me,' said Muhammad. 'He had an anger inside.… I can’t explain what was in his mind.'

Anwar Kazmi, a member of the mosque's board of trustees, told a USA Today reporter that 26-year-old Tamerlan Tsarnaev, who died early Friday morning after a shootout with police, was an infrequent attendee for about a year-and-a-half, while 19-year-old Dzhokhar A. Tsarnaev, who was captured hiding in a boat in Watertown on Friday night, attended only once.

Responding to the revelation that both brothers had attended their mosque, the Islamic Society issued a statement to say that while the suspects were known to other worshipers, they could not have predicted their horrific bombing of the Boston marathon which claimed three lives and injured over 180 people.

Scroll Down for Video

Blamed: Pamela Geller has called for the Boston mosque to be monitored, citing links to the Boston bombers and Usaamah Rahim

Blamed: A banner reading "United We Stand For Peace on Earth" stands outside the Islamic Society of Boston mosque in Cambridge. Activist Pamela Geller blames the mosque for radicalizing Rahim

Anwar Kazmi, a member of the mosque's board of trustees said that the Tsarnaev brothers were infrequent visitors to the Islamic Society of Boston Cultural Center

VIDEO Tamerlan Tsarnaev was thrown out of mosque for angry rant

Imam Suhaib Webb, of the Islamic Society of Boston Cultural Center, the city's largest mosque, said in an interview that he had recently heard of the incident. 'That's a sign right there that his views aren't mainstream,' Webb said.

They pledged to aid federal and city law enforcement to leave 'no stone uncovered in finding any suspects connected to the bombs.'



Meanwhile, the Tsarnaev bother's uncle Ruslan Tsarni, who described the pair as 'losers' after they were named as suspects, raised the worrying possibility that they were radicalized by a domestic source and not a foreign one.



The lawyer said that Tamerlan especially had fallen under the thrall of an as-yet unidentified religious leader while living in Cambridge, Massachusetts.



Ruslan Tsarni says he grew concerned about Tamerlan Tsarnaev when he told him in a 2009 phone conversation that he had chosen 'God's business' over work or school.



Tsarni said he then contacted a family friend who told him Tsarnaev had been influenced by a recent convert to Islam.

'There certainly were mentors,’’ Tsarni said to the Today show. 'I was shocked when I heard his words, his phrases, when every other word he starts sticking in words of God. I question what he’s doing for work, (and) he claimed he would just put everything in the will of God.



'It was a big concern to me. He called me 'confused' when I started explaining to him, make yourself useful to yourself and to your family and maybe you’ll have extra to share with everybody else.'

'I strongly believe they were just puppets and executors of something of bigger scale,' Tsarni told Savannah Guthrie.

Ruslan Tsarni, uncle of Boston Marathon bombing suspect brothers, Dzhokhar A. Tsarnaev and Tamerlan Tsarnaev believes 'they were just puppets and executors of something of bigger scale'

The brothers are believed to have placed one of the bombs near to a Boston store where their mother had been sacked for stealing clothes

Yesterday the brothers¿ mother, Zubeidat, said the FBI once told her that Tamerlan was ¿really an extremist leader and that they were afraid of him'

The Rhode Island resident told his nephew that 'he was giving up on everything, struggling with your own shadow' by whole heartedly turning to Islan.



'He had been sort of brainwashing him,' Tsarni told the Sunday Times of London.



The brothers' parents told NBC News they believe their sons were framed and Tsarni said a family acquaintance told him there was an outside influence on Tamerlan.



'He said there is someone who brainwashed him, some new convert to Islam,’’ Tsarni said. “I would like to stress (the acquaintance was) of Armenian descent.’



[caption Last night there were calls for Dzhokhar to be classified as an 'enemy combatant'

The uncle also speculated that Tamerlan’s younger brother, Dzhokhar, was manipulated into the bombing plot.



'Dzhokhar is just a kid who wanted to have older brother to look up at. Except for being a murderer, he’s been a loving brother.'



'That so-called radicalization was seeded right here, not in the Caucasus, not in Russia, not in Chechnya, which he has nothing to do with,' Tsarni said.



The extremist views which Tamerlan developed over the course of the past three years caught the attention of Russian security officals who asked the FBI to question him in 2011 - before he traveled to Chechnya and Dagestan last year.



The FBI are said to have discovered nothing incriminating during their conversations with Tamerlan.



However, friends said that Tamerlan became increasingly vocal in his views, especially concerning Christians.



'He said . . . the Koran spoke more of the truth then the Bible. He said the Bible was used as an excuse to invade other countries,' said Albrecht Ammon, 18, a student at Cambridge Rindge and Latin School, which the bombers also attended according to the New York Post.

And it has been revealed today that Tamerlan had direct contact with Chechen terrorists – and was ‘monitored’ by investigators for five years.



The FBI put Tamerlan Tsarnaev, 26, under surveillance after receiving an explicit warning from the Russian intelligence services.

Rebel: One theory is that Tamerlan Tsarnaev was inspired by Doku Umarov, a Chechen terrorist known as Russia's Bin Laden

Umarov has recently widened his fight for Chechen independence to a wider Jihadist agenda

VIDEO Could the Boston bombers have been inspired by Umarov?

But despite apparently telling his mother that Tamerlan was an ‘extremist’ leader, the FBI eventually discounted the possibility that he was a threat.



Yesterday the brothers’ mother, Zubeidat, said the FBI once told her that Tamerlan was ‘really an extremist leader and that they were afraid of him’. She added: ‘He was controlled by the FBI for five years. They knew what my son was doing. They were following every step of his.’



And his father, Anzor Tsarnaev, said investigators warned his son: ‘We know what sites you are on, we know where you are calling, we know everything about you. Everything. We are checking and watching.’

Russia's Bin Laden Doku Umarov was believed to be behind the Moscow Metro bombing in 2010 which killed at least 40

Despite all this, the FBI found no substantive evidence that he was engaged in terror-related activities though they continued to ‘monitor his internet use and contacts’.



According to an intelligence source, Russia remained convinced that Tamerlan, an ethnic Chechen, was in ‘direct contact’ with Islamist militants, most likely based in the strife-torn southern Russian region of Dagestan, where he lived for two years with his family prior to moving to the US.



During a six-month visit to Russia last year – a trip US investigators are investigating – it is understood Tamerlan visited Dagestan, which is now regarded as more unstable than Chechnya.



One theory is that Tamerlan and Dzhokhar, who was in thrall to his older brother, may have been ‘inspired’ by a rebel leader known as Russia’s Bin Laden.

A light beam from a helicopter, top right, aims in the direction of Watertown, where officials searched for Dzhokhar A. Tsarnaev on Friday

Dzhokhar Tsarnaev is apprehended on Friday evening after almost 24-hours on the run following a week of terror in Boston

Doku Umarov, like the Tsarnaev brothers, is an ethnic Chechen from the war-torn Caucasus region that lies between Europe and Central Asia.



He has been accused of masterminding some of the worst terrorist atrocities in Russia, including suicide bombings carried out by two women on Moscow’s Metro system in 2010 which killed at least 40.



Significantly, while Umarov was originally fighting only for Chechen independence he has more recently embraced a wider jihadist agenda.



It raises the terrifying prospect of further atrocities being carried out across the globe by disaffected individuals inspired by the jihadist rhetoric of the former Chechen leaders.



Intriguingly, President Putin offered to ‘provide assistance’ to the investigation in Boston before it was known that there was a Chechen link to the bombing.



‘Fighting terrorism is more important than political posturing,’ said a Russian source yesterday.

