Sick moment extremists who appeared in ‘jihadi’ video with London Bridge attacker laugh at gruesome ISIS execution

TWO extremists who appeared in a video with the ringleader of the London Bridge terror rampage were once caught on camera laughing as they watched men being murdered in a gruesome ISIS flick.

Mohammed Shamsuddin and London bus driver Abu Haleema giggled as they ate and watched the footage of victims having their heads blown off and being drowned in a swimming pool.

Londoner Abu Rumaysah - branded ‘Jihadi Sid’ - is suspected of being the masked fanatic waving a pistol at the camera in the gruesome video showing the murder of five men.

At the time, the two men ran an extremist Islamist group in London which looked up to Rumaysah and also counted one of the weekend's killers among its ranks.

In the Channel 4 documentary The Jihadis Next Door shown last year, Shamsuddin was seen praying with a group of followers including one of the London attackers in Regent’s Park under a black flag.

Haleema was not thought to be there.

Shamsuddin told his followers: "The Sharia is coming to the UK – this black flag you see here one day is gonna be on 10 Downing Street."

Minutes later, the pair were shown in a vicious confrontation with police who had received a tip-off about the flag.

After an ugly standoff, they were detained for an hour – but the flag was never discovered.

Shamsuddin later told the filmmakers: "Our message is deadly, we are calling for world domination, and for Sharia for the UK."

The documentary then goes on to show the clip of Shamsuddin and Haleema being shown the execution video.

However, rather than being shocked they seem to find the sickening clip funny.

Shamsuddin laughs: "The guy is foaming at his mouth, you know what I mean. Wow."

Haleema added: "That’s a HD quality bruv, 4k."

Shamsuddin, who has publicly hailed his support for ISIS, has also called for Sharia law in the UK and made chilling warnings about a ‘backlash’ by British Muslims.

He is a disciple of Omar Bakri Mohammed – the Tottenham Ayatollah – and his successor Anjem Choudary.

He has been at the forefront of Islamist protests over the past decade, and openly admitted preaching a message of ‘world domination’.

Before escaping to the Middle East while on bail two years ago, Rumaysah - a former bouncy castle salesman - was filmed denouncing the Queen.

The extremist, who was born a Hindu named Siddhartha Dhar, was filmed at the start of the documentary at his lock-up which was strewn with ISIS flags.

He said to camera: "One day when the Sharia comes, you will see this black flag everywhere…

"If you look at the way that society is moving on right now, you can see that it’s a very real, real possibility, the way Muslims are coming forward in this country."

Earlier this year, there were calls for YouTube to ban sermons by Haleema after he called members of Birmingham's Muslim community “cowards”.

WHAT WE KNOW SO FAR:

• ISIS has claimed responsibility after a van ploughed through pedestrians on London Bridge just after 10pm on Saturday
• Three jihadists wearing fake bomb vests began knifing bystanders and pub-goers
• Staff at one pub barricaded the doors as the attackers tried to storm the building before the three terrorists were shot dead
• At least seven victims were killed, including a French man, and 48 people were injured with 21 critical
• Four cops including British Transport Police officer among those injured
• The first victim was named as Canadian national Christine Archibald, a charity worker from British Columbia
• Theresa May has confirmed the terror threat level will remain at 'severe' and said all three attackers have been identified
• Cops raid block of flats in Barking, East London, reportedly home to one of the attackers, and arrest 12 as well as sealing off East Ham flat
• Police and piece together the chaos
• The Met opened a casualty bureau for those concerned about family and friends. There are two numbers to call: 0800 096 1233 and 020 7158 0197
• All the main political parties aside from UKIP suspended campaigning as Mrs May confirmed the election will go ahead
• One Love Manchester Concert goes ahead as youngsters refuse to let terrorists stop them attending
• Sick ISIS thugs celebrated attack and called for more atrocities
• London Bridge Underground and National Rail stations re-opened on Monday
• A minute’s silence nationwide on Tuesday at 11am and a vigil in Potters Fields Park in London at 6pm on Monday
• Gunfire heard in Dagenham as heavily-armed cops detain several people during raids linked to the attack
• Families have shared desperate appeals for information to find loved ones still missing after the atrocity with a nanny and Frenchman among those who vanished

Did you see the London Bridge terror attack, or know anyone involved? Please contact The Sun newsdesk on 020 7782 4100, text 07423720250 or email exclusive@the-sun.co.uk