Manchester Arena attack jurors shown homemade bomb-making videos
and live on Freeview channel 276
The 13-minute film showed a man, wearing a black balaclava covering his face, khaki fatigues and a gun holster on his hip, stood in an ordinary domestic kitchen, giving a step-by-step guide on how to make an improvised explosive device (IED).
Suicide bomber Salman Abedi detonated a homemade bomb in his rucksack, packed with shrapnel of thousands of nuts and screws, to kill 22 bystanders and injure hundreds more at Manchester Arena on May 22, 2017.
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Hide AdAmong those killed were Sorrell Leczkowski, 14, from Adel, Leeds; Courtney Boyle, 19, a Leeds Beckett University student from Gateshead; Kelly Brewster, 32, from Sheffield; Wendy Fawell, 50, from Otley; and Angelika and Marcin Klis, a couple from York.
His brother, Hashem Abedi, 22, is on trial accused of being in on the bomb plot, which he denies.
Jurors in his trial were shown the video, detailing how to construct a bomb by first making TATP, also known as Tri-acetone Tri-peroxide.
It goes on to detail how to construct a detonator using an ordinary soft drinks can and putting the device together with shrapnel of metal ball bearings.
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Hide AdDuncan Penny QC, prosecuting, asked witness Lorna Philp, principal case officer with the Forensic Explosive Laboratory in Kent, to comment on any similarities or dissimilarities with the device used in Manchester.
Ms Philp said both devices used TATP as the main explosive charge, both used shrapnel, but of different types, and that the Manchester device was much larger.
In the subtitled video, which jurors heard had been taken off the internet, the figure begins by saying: "May blessings and peace be upon Mohammed."
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Hide AdWhile wearing surgical gloves, he proceeds to follow the process of mixing and using chemicals to make TATP and states: "And now we should have 'white ice' by Allah's permission."
He advises the substance should only be made "shortly before an operation" and warns repeatedly that the explosives are sensitive to pressure, friction and heat as he carefully spoons the mixture into a container as part of the bomb.
Using a section of thin metal taken from a drinks can, he then makes a detonator before packing the device with ball bearings.
Remnants of a soft drinks cans, a paint tin and a novelty money tin were all recovered from the scene of the Arena attack.
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Hide AdTraces of TATP were discovered at Granby Row - the flat Salman Abedi rented in central Manchester in the days before the bombing and at Somerton Court, a sublet property he briefly rented in Blackley, north Manchester, weeks earlier, and in the Nissan Micra bought by the brothers and allegedly used to store items.
Also in crime: Brother of Manchester Arena bomber 'helped to make explosives', Old Bailey jurors told
Hashem Abedi denies 22 counts of murder, one count of attempted murder encompassing the injured survivors, and conspiring with his brother to cause explosions.
The trial was adjourned until Tuesday morning.