A public inquiry will be held into the Southport attacks, Home Secretary Yvette Cooper has announced.
It comes after Axel Rudakubana pleaded guilty to killing Bebe King, 6, Elsie Dot Stancombe, 7, and Alice da Silva Aguiar, 9 at a Taylor Swift-themed dance class in the town last year.
Cooper said their families “needed answers about what had happened leading up to the attack”.
She said Rudakubana had been referred to Prevent programme three times between December 2019 and May 2021 when he was aged 13 and 14, as well as having contact with the police, the courts and social services.
“Yet between them, those agencies failed to identify the terrible risk and danger to others that he posed,” she said.
She added that the case came “against a backdrop over a series of years in which growing numbers of teenagers have been referred to Prevent, investigated by counter-terror police, or referred to other agencies amid concerns around serious violence and extremism”.
“We need to face up to why this has been happening and what needs to change.”
Cooper said the Crown Prosecution Service had been clear that information about Rudakubana’s past “could not be made public before today to avoid jeopardising the legal proceedings or prejudicing the possible jury trial, in line with the normal rules of the British justice systems”.
“Now that there has been a guilty plea, it is essential that the families and the people of Southport can get answers about how this terrible attack could take place and about why this happened to their children,” she said.
She added that during the summer, the Home Office had commissioned an urgent Prevent Learning Review into the three referrals concerning Rudakubana.
“We will publish further details this week, alongside new reforms to the Prevent programme,” she added.
In a statement before the inquiry was announced, the prime minister said there were “grave questions to answer”.
Sir Keir Starmer said “Britain will rightly demand answers” adding: “We will leave no stone unturned in that pursuit.”
“At the centre of this horrific event, there is still a family and community grief that is raw; a pain that not even justice can ever truly heal,” he said.
“Although no words today can ever truly convey the depths of that pain, I want the families to know that our thoughts are with them and everyone in Southport affected by this barbaric crime.
“The whole nation grieves with them.”
Conservative leader Kemi Badenoch has also said there are questions to answer about the case.
In a social media post, she said: “We will need a complete account of who in government knew what and when. The public deserves the truth.”
At a court hearing in December last year, not guilty pleas had been entered on behalf of Rudakubana, however on Monday morning he admitted to sixteen charges including the murder of the three girls on 29 July last year.
He also pleaded guilty to the attempted murders of eight children and two adults, possession of a knife on the day of the murders, producing a biological toxin, ricin, and the possession of an al-Qaeda training manual – a terror offence.
The BBC has been told that before the attack, Rudakubana had been referred to Prevent because of concerns about his general obsession with violence.
In December 2019, Rudakubana – then aged 13 – returned to the school from which he had been expelled and assaulted a pupil with a hockey stick, breaking their wrist.
In the same year he had told Childline he was going to take a knife into school because of racial bullying.
The NSPCC, which runs Childline, said that one call was “sufficiently serious to breach a threshold which led to Childline informing the local authorities of their concerns”.
Speaking outside court on Monday, Ursula Doyle, the CPS prosecutor, said Rudakubana was “a young man with a sickening and sustained interest in death and violence – he’s shown no signs of remorse”.
Rudakubana is due to be sentenced on Thursday and is expected to be given a life sentence.
However, he cannot be sentenced to a whole-life term for his crimes – which would mean he would not be released from prison except in exceptional compassionate circumstances – because he is under the age of 21.
