Doctors must be held responsible for their "failure" to treat Nottingham killer Valdo Calocane appropriately, the family of one of his victims have said.
The family of Grace O'Malley-Kumar, who was one of three people killed in the stabbing attack in Nottingham in June 2023, has called for a statutory inquiry into the case.
Valdo Calocane, who had been diagnosed with paranoid schizophrenia, was sentenced to an indefinite hospital order after killing 19-year-old students Barnaby Webber and Grace and 65-year-old caretaker Ian Coates before attempting to kill three other people, in a spate of attacks in Nottingham.
The call for a statutory inquiry follows the publication of a review by NHS-England, which found multiple failings in the care of Calocane.
This included not forcing him to take anti-psychotic medication because he did not like needles.
Grace, 19, is the daughter of Dr Sinead O'Malley-Kumar, an Irish-born consultant anaesthetist who is now based in London, and Dr Sanjoy Kumar.
She was killed along with Barnaby Webber, also 19, and 65-year-old Ian Coates.
Dr O'Malley-Kumar criticised medical professionals involved in the care of Calocane, arguing that their approach would have been different had they considered that their loved ones could have come into contact with him.
She told a press conference that she believed there was "laziness" in terms of his care.
She added that psychiatry was the "only branch of medicine where a third party can be hurt, where a member of a family can be killed, where a patient can take their own lives, where the patient can take the life of a complete stranger, where the patient can take the life of a child, my child.
"If any of them knew that Valdo Calocane was going to go out and share student accommodation with their children, I suspect their choices may have changed," she said.
"Accountability on an individual level is essential."
Grace's father said there were failings across a number of agencies including the police and the National Health Service.
Dr Kumar said: "He (Valdo Calocane) was sectioned four times. Four times. The psychiatrist failed to change his treatment four times.
"They failed to put provisions in the community to make sure he took his medication, ultimately irresponsibly discharging him into the community to do harm.
"They failed to consider public safety in Nottingham."
He added: "For the loss of our beautiful, brave daughter, Grace, there must be change.
"This is a watershed moment.
"We demand a public inquiry with statutory powers, powers to compel witnesses to appear to account for their failures.
"We demand accountability and we will not stop until we get justice for the Nottingham attacks."
The NHS has apologised to the families of the victims for multiple failings in the care of Calocane.
This included a finding that his case "was not fully understood, managed, documented or communicated"
Emma Webber, mother of Barnaby, criticised the NHS for initially seeking to publish a redacted version of the review.
She said: "None of us should be here today. Anything and everything that could go wrong did.
"Barnaby, Ian and Grace would be here today if those concerned across these agencies had just done their job properly."
She said it was time for the families to meet Prime Minister Keir Starmer.
The families previously expressed their anger after Calocane was given a "hospital order" after admitting to manslaughter on the grounds of diminished responsibility.
Ms Webber told the press conference that the indefinite hospital order represented an "enormous miscarriage of justice".
"He knew what he was doing," she said. "He serves no punishment for his crimes."
James Coates, the son of Ian Coates, said that the people of Nottingham are not safe.
"I want to be proud but I can't," he said.
"The city, as a whole, is a failure."
Talking about the city's NHS services, he said: "If they take shortcuts, it puts people's lives at risk."
Solicitor Neil Hudgell, acting on behalf of the families, said they will meet with the UK government next week to discuss a statutory public inquiry.
Mr Hudgell said: "We welcome the offer to meet the government next week to discuss formats and scope of that inquiry, as well as the identity of the chair."
Additional reporting PA
