A former Uber driver has been found guilty of planning terrorist attacks at London hotspots and told police officers he 'learned a lot' from 'likeminded' Streatham attacker Sudesh Amman while in Belmarsh prison.

Mohiussunnath Chowdhury, who had previously been cleared of a sword attack on police outside Buckingham Palace, was today convicted at Woolwich Crown Court.

The 28-year-old allegedly boasted to undercover police how he had deceived a jury into finding him not guilty of the attack.

His sister Sneha Chowdhury, 25, cried as she was convicted of one count of failing to disclose information about acts of terrorism and cleared of another count of the same charge.

Woolwich Crown Court heard Chowdhury unwittingly revealed his plans to 'unleash death and suffering on non-Muslim members of the public' to undercover agents.

Chowdhury said he 'learned a lot' from 'likeminded brothers' while on remand at Belmarsh with other terrorists including Streatham knife attacker Sudesh Amman.

Sneha Chowdhury (left) who has been convicted of one count of failing to disclose information about acts of terrorism and cleared of another count of the same charge. Mohiussunnath Chowdhury said he 'learnt a lot' from Streatham attacker Sudesh Amman

After he was arrested and interviewed by police (above) he said he liked weightlifting

One of the images Chowdhury had drawn is shown above. It is a cartoon of a terrorist shooting a police officer

The 20-year-old jihadi was shot dead by police officers after stabbing two people in Streatham High Road on Sunday 2 February.

Chowdhury's defence barrister Simon Csoka QC had argued the university drop-out was a 'pathetic little man' and an 'attention-seeker' who 'talks and talks, but doesn't do'.

Chowdhury also dismissed his praise of the Charlie Hebdo shootings and the murder of soldier Lee Rigby as 'jihadi banter' and said his weapons training came from a fascination with martial arts and weightlifting.

While being interviewed by police, just three days before a Pride event in London, he appeared 'personable'.

He answers the officers questions and tries to convince them he was not planning an attack.

'I've already been in prison. I do not want to go back there.

'I know what I did was wrong ... I was found not guilty by 12 members of the jury, why would I then come out to do another attack?

'It doesn't make any sense', he tells them.

He then hears his own voice on a recording and answers 'no comment' for the rest of the interview.

Chowdhury had previously been cleared of a sword attack on police outside Buckingham Palace (police on the scene above)

Sneha Chowdhury (right), 25, cried as she was convicted of one count of failing to disclose information about acts of terrorism and cleared of another count of the same charge. Her brother Mohiussunnath is pictured left

Prosecutor Duncan Atkinson QC said Chowdhury desired to 'unleash death and suffering' on non-Muslims after absorbing sermons from preachers like al Qaida's Anwar Al-Awlaki.

Chowdhury from Luton was 'motivated by dreams of martyrdom for the cause of Islam, and inspired by preachers of hate', a jury at Woolwich Crown Court was previously told.

The brother and sister today hugged in the dock and Chowdhury, dressed in a blue shirt and tie, could be heard whispering: 'It's all right.'

He will be sentenced by judge Andrew Lees on March 13 while she was bailed for a pre-sentence report to be prepared.

The extremist, who had martyrdom notes posted on his bedroom door, had the intention 'to kill and harm as many people as possible', Scotland Yard counter terror commander Richard Smith told reporters.

Chowdhury told one undercover officer known only as Mikael he was free to attack one million unbelievers if he was fighting for 'the pleasure of Allah' and stressed the importance of an 'ambush', saying: 'They shouldn't know what hit them', the trial heard.

Artists impression of Mohiussunnath Chowdhury appearing at at Woolwich Crown Court. January 21, 2020

Handout file photo photo issued by Metropolitan Police of a handwritten note, shown at Woolwich Crown Court, relating to the trial of Sneha Chowdhury and Mohiussunnath Chowdhur

The officer had tried to gain the full trust of Chowdhury by telling him he had a gun and would carry out his own atrocity imminently.

In a secretly taped recording from June last year, Chowdhury can be heard saying: 'If you're one man and there's a million kuffar (unbelievers), you are free to fight them, if your intentions are clear, you're fighting for the pleasure of Allah.

'And if you die that's completely fine, it's even more virtuous, you know.

'The weapons are a must, these firearms, it's a 100 per cent ... just make sure you have clips, Akhi ('brother'), you have enough clips, know what I'm saying.'

He later added during the conversation: 'It must be an ambush ... we should be the one doing it first, they shouldn't know what's hit them, yeah, does that make sense?'

The court heard how Chowdhury had bragged about deceiving the jury which cleared him at a previous trial at the Old Bailey in December 2018 for the palace sword attack including by shaving off his large unkempt beard.

CCTV imagery above shows Chowdhury purchasing items for the attack in a local supermarket

During that incident, Chowdhury repeatedly shouted 'Allahu Akbar', meaning God is the greatest, and left two unarmed officers with cuts to their hands.

He said he felt 'so much peace' before slashing the officers because he was reassured by 'guaranteed paradise', the trial heard.

Chowdhury was arrested three days before the London Pride parade last summer.

The prosecution described his sister as 'loyal, much put-on and long-suffering' but also as someone who was 'aware of all he was saying to her and what it meant'.

Chowdhury was unwittingly confiding his plans to undercover police posing as like-minded extremists who had him under surveillance during a five-month operation.

The map above shows the route Chowdhury had taken when he was at Buckingham Palace

The image above shows the night that Chowdhury was at Buckingham Palace with a sword

Preparing for his atrocity, he lifted weights, practised stabbing and rehearsed beheading techniques as well as booking shooting range training and trying to acquire a real gun, his trial at Woolwich Crown Court heard.

Chowdhury, who was cleared in December 2018 of slashing police with a sword outside the Queen's London residence while shouting 'Allahu Akbar', had bragged about deceiving the jury in that trial.

He remained emotionless as jurors found him guilty of engaging in conduct in preparation of terrorist acts, collecting information likely to be useful to someone preparing an act of terrorism and disseminating terrorist publications.

The second charge related to a document titled 'guidance for doing just terror operations' on his phone which included instructions on how to kill people with knives.

His sister Sneha Chowdhury, 25, cried as she was convicted of one count of failing to disclose information about acts of terrorism and cleared of another count of the same charge.

The hilt of the sword allegedly used outside Buckingham Palace is pictured above next to a ruler

Another photograph of the sword allegedly used in the incident at Buckingham Palace is pictured above

A police image of the sword used during the incident outside Buckingham Palace in London is seen above

Jurors deliberated for eight hours and 39 minutes before returning their verdicts this afternoon.

Earlier this month Duncan Atkinson QC, prosecuting, said Chowdbury was 'keen to take part in an attack on a high profile and very public target in the UK.'

The targets mentioned included Madame Tussaud's in London, the Gay Pride parade, and an attack on tourists on a London open-top tour bus, the jury was told.

'The object was to unleash death and suffering on non-Muslim members of the public who happened to be present, using a firearm, sword and even a van as part of an attack,' the prosecutor said.

Chowdhury was also said to have been targeting Gay Pride in London (pictured last July)

The targets mentioned included Madame Tussaud's in London (file picture), the jury was told

Chowdhury told undercover officers that he had indeed been trying to carry out a terrorist attack in 2017 and that he had 'deceived' the earlier jury that acquitted him of it, the court was told.

Chowdhury purchased a replica Glock gun and told undercover officers what he was planning to do and why.

'He told them of his training regime, and sought to involve them in his firearms-related training,' Mr Atkinson said.

'He told them of what he was wanting and planning to do, and sought to involve them in the carrying out of one or more terrorist attacks.'

In the lead-up to the incident outside Buckingham Palace on August 25, 2017, Chowdhury's activities over the internet and on social media made it clear that he was a supporter of Islamic extremism, and ISIS in particular, the court heard.

Chowdhury was cleared of launching a Samurai sword attack on police outside Buckingham Palace in London (file image)

Uber driver obsessed by Japanese cartoon superheroes who taught himself about Islam using YouTube and Google

Mohiussunnath Chowdhury claimed he taught himself about Islam using Google and Youtube.

His obsession was the 'End of Times' and the 'Day of Judgement' and he would never kill to reach paradise, he said.

'There are a lot of prophesies that happen and a lot of the things I can see in front of my eyes, and I thought it was interesting this was coming to fruition in this day and age,' Chowdhury told the jury.

His passion was Japanese animated superheroes and he claimed there were correlations with his cartoon world, explaining: 'There was a figure that would come and rid the world of all evil. I thought it was very interesting.'

Chowdhury had only become interested in religion four months before the attack, around the same time he started driving for Uber.

He was brought up in Uxbridge, West London, where he studied for a BTEC in business studies at college and then went worked briefly at Heathrow as a cleaner and then at Tesco as a cashier.

The family moved to Luton when Chowdhury was 22 and he began studying psychology at City University in London before dropping out and switching to studying English language teaching at Bedfordshire University in Luton.

The image above is a drawing by Chowdhury which shows the 9/11 terrorist attack in the US

When he dropped out of that course too, he began work in a warehouse for Amazon and then as a driver for the online retailer.

At university, he started 'researching about everything, the universe, history of England, the world,' he said.

Two days before the attack in a Whatsapp argument about ISIS, one of his friends told him: 'U dont even believ in religion'.

'All my research was on the internet, Google and Youtube,' he said. 'I would type in 'history of Islam', and on the righthand side there would be suggestions.'

He had bought the sword that was used in the attack in 2013 when he started at university because he had seen it in Japanese anime cartoons.

'The anime I watched the guys go around with them,' Chowdhury said. 'I wanted to get a cool ornament, I went online and kept it as an ornament in my room.'

He watched videos on Youtube by the al-Qaeda ideologue Anwar al-Awlaki and the radical preacher Abdullah el-Faisal.

But by the end of July he said he was 'feeling worthless and terrible.'

Chowdhury told police that he only planned to 'confront' them and added: 'I just felt like I had to do something and the only thing I could think of was to confront the police because they're the ones enforcing the Queen's laws and stuff. That's the logic.'