The Parsons Green bomber “carefully planned an attack he wanted to be deadly”, jurors have been told.
Ahmed Hassan, 18, was moved by “anger and hatred” when he planted 400g of explosives on a packed Tube train last September, the Old Bailey trial heard.
He had told his mentor Katie Cable that it was his “duty to hate Britain”, the country he blamed for the death of his father in Iraq.
The teenager had also told Home Office officials he had been “trained to kill” by Islamic State when he claimed asylum in 2016 – something Hassan went on to say was a lie when he gave evidence in court.
Hassan said he had not wanted to cause an explosion and hurt people by making a homemade bomb, but he had wanted to cause a fire in order to gain “attention” and had been “bored”.
Hassan has denied attempted murder and using the chemical compound TATP to cause an explosion that was likely to endanger life.
In her closing speech, prosecutor Alison Morgan said: “What he did that day was an act of anger and hatred designed to cause death and destruction of property.”
She said Hassan “left nothing to chance in the preparation of this attack”.
Ms Morgan told the court that is was “a matter of luck that there was not a full explosion that day”.
For the second time, the court was shown CCTV footage of the fireball ripping through the carriage with frightened passengers trying to escape. Many suffered serious injuries and burns.
The prosecutor asked jurors to imagine what would have happened if 400g of TATP had fully exploded, sending 2.2kg of screwdrivers, knives, nuts and bolts flying at high velocity.
Ms Morgan said: “Whatever story he tells you in the witness box, the fact that he was angry with this country was clear to those who met him, especially Ms Cable… he described it as his duty or right to hate this country and he blamed this country for the death of his father.
“You can be sure it was not an act of attention seeking or boredom. This was someone who wanted to cause death and damage and make good his escape.”
The teenager’s defence team said those who knew him saw a “sincere, positive boy”.
Tim Moloney QC told jurors that staff at Barnardo’s had said he was a “very polite” young person “seeking help, looking forward to the future” after being a “troubled young man”.
He added: “It seems to me the prosecution suggest there may be truth that maybe he was with IS and it’s possible we may never know.
“If he was with IS he would have had many opportunities to do what he wanted. Making TATP is a really straightforward process that can be done in a day.
“You have to judge this case on the evidence and nothing else – not speculation, fear or emotion.”
The jury will retire to make their decision on Thursday morning.
(c) Sky News 2018: Parsons Green bomb suspect moved by ‘anger and hatred towards UK’