The UK government has confirmed the establishment of a judge-led inquiry into the Nottingham attacks in 2023.
Three people were killed in the attacks, including 19-year-old Grace O'Malley-Kumar, whose mother Sinéad is from Ireland.
The other two victims were 19-year-old Barnaby Webber and 65-year-old Ian Coates.
Family members, including the parents of Grace O'Malley-Kumar, met with Prime Minister Keir Starmer in Downing Street this afternoon, who confirmed his decision to commence a public inquiry.
Reacting to the decision outside, Grace's father, Dr Sanjoy Kumar, told reporters that "today we got the answer that we've been fighting for. A judge led, statutory inquiry with wide ranging powers that can call witnesses. And we can hold people accountable".
Valdo Calocane pleaded guilty to three counts of manslaughter on the basis of diminished responsibility.
He was sentenced to an indefinite hospital order in January 2024.
An NHS-England review, published earlier this month, found multiple failures in his care.
This included not forcing him to take anti-psychotic medication because he did not like needles.
The families of the victims were told today that a number of different agencies would be scrutinised as part of the statutory inquiry.
Mr Starmer acknowledged it had "taken a long time" to reach a decision on announcing an inquiry.
