Home Secretary Yvette Cooper has announced a nationalist enquiry into the Southport stabbings aft murderer Axel Rudakubana pleaded guilty.
She said the probe into the murders of 3 girls astatine a Taylor Swift-themed creation people was to "get to the information astir what happened and what needs to change".
Earlier Keir Starmer said determination are questions to reply connected however the young victims of the Southport stabbings were "failed" by the state.
The PM said the condemnation of the "vile and sick Southport killer" Axel Rudakubana was invited but it was besides a "moment of trauma for the nation".
Rudakubana pleaded blameworthy contiguous to murdering Alice da Silva Aguiar, 9, Bebe King, 6, and Elsie Dot Stancombe, 7, successful a frenzied onslaught connected a Taylor Swift-themed people connected July 29.
Rudakubana, 18, of Banks, Lancashire, was owed to basal proceedings astatine Liverpool Crown Court charged with 16 offences, including 3 counts of murder.
He besides admitted the attempted murders of 8 different children, who cannot beryllium named for ineligible reasons, people teacher Leanne Lucas and businessman John Hayes.
In a statement, the Prime Minister said: "Our thoughts are with the families of Bebe King, Elsie Dot Stancombe, and Alice da Silva Aguiar, and the families of everyone affected, who volition beryllium saved the ordeal of a protracted trial.
"The quality that the vile and sick Southport slayer volition beryllium convicted is welcome.
"It is besides a infinitesimal of trauma for the nation, and determination are sedate questions to reply arsenic to however the authorities failed successful its eventual work to support these young girls.
"Britain volition rightly request answers, and we volition permission nary chromatic unturned successful that pursuit.
"At the centre of this horrific event, determination is inactive a household and assemblage grief that is raw, a symptom that not adjacent justness tin ever genuinely heal.
"Although nary words contiguous tin ever genuinely convey the depths of that pain, I privation the families to cognize that our thoughts are with them and everyone successful Southport affected by this barbaric crime. The full federation grieves with them."
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