The mother of Nottingham attacks victim Barnaby Webber has backed calls to stop killers convicted of any form of manslaughter being released early from prison.

Barnaby, his friend Grace O'Malley-Kumar and school caretaker Ian Coates were killed on 13 June 2023 by Valdo Calocane, who pleaded guilty to manslaughter on the grounds of diminished responsibility, and was sentenced to a hospital order.

Emma Webber has now joined more than 30 families - including BBC commentator, John Hunt, whose wife and two daughters were murdered in a crossbow attack - in signing an open letter to the government.

The government said it was fast-tracking a plan to keep the most dangerous offenders behind bars.

The government's early release scheme aims to ease prison overcrowding in England and Wales.

The families of those affected by homicide have called for those convicted of any form of manslaughter to be excluded.

In a letter to Justice Secretary Alex Norris, the families said they felt victims were "being asked to bear the consequences of the prison capacity crisis".

Signatories to the letter include Webber, whose son Barnaby was stabbed to death in the spate of attacks in Nottingham.

Calocane admitted three counts of manslaughter and three counts of attempted murder on the basis of diminished responsibility, and was sentenced to an indefinite hospital order in January 2024.

The letter comes after Prime Minister Andy Burnham indicated the government would make changes to the early release scheme to ensure that the killers of PC Andrew Harper, who were convicted of unlawful act manslaughter, are not eligible.

The letter also highlighted concerns that some of the most serious domestic homicides result in convictions of voluntary manslaughter and that it would be "difficult to reconcile with the government's commitment to halve violence against women and girls" if those offenders were released early.

The families said they had "deep concerns about how early release may apply in homicide".

They wrote: "As the government considers excluding unlawful act manslaughter from the scheme, it must follow that all forms of manslaughter are also excluded.

"We have spoken with numerous bereaved families affected by homicide.

"A consistent theme has emerged: many feel that victims are being asked to bear the consequences of the prison capacity crisis through the earlier release of those convicted of the most serious offences.

"Whether intended or not, this is creating a growing sense that justice for victims and public protection are being compromised in order to address pressures elsewhere in the system.

"We therefore urge the government, as it seeks to prevent those responsible for the killing of PC Harper from benefiting from the early release scheme, to ensure that voluntary manslaughter is also brought within the proposed exemption."

Other signatories include:

Campaigners and victims' organisations have also backed the change.

Frank Mullane, chief executive officer of Advocacy After Fatal Domestic Abuse, said: "The breadth of support for this letter demonstrates the strength of feeling among bereaved families.

"These are not isolated voices. Families from many homicide cases in recent years are united in calling for a clear and consistent approach to homicide and early release."

Jo Early, chief executive officer of Support after Murder and Manslaughter, said: "Bereaved families understand the pressures facing the justice system.

"But they should never feel that justice for victims is being diluted because of those pressures. The most serious offences should be treated consistently and public confidence must be protected."

Currently, 5,000 people are set to be released early, down from 6,000 after some exemptions were announced as part of an urgent review.

Speaking on Radio 4's Today programme, Bridget Phillipson, Minister for Women and Equalities, defended the early release scheme.

She said the government had faced "some really difficult and unpalatable choices" in dealing with prison overcrowding and that they had faced "the wholesale collapse of the criminal justice system".

Phillipson said: "We have been clear that the most serious offenders will be exempt from that early release programme.

"But the reality of what we are confronting is that, if allowed to go unchecked, we could end up in a position where someone who is arrested for very serious offences, for example offences related to violence against a woman, and we wouldn't have anywhere to send that individual."

A Ministry of Justice spokesperson said: "We share the public's anger that these options are even being considered, after we inherited a prison system on the brink of collapse.

"We are fixing this by building 14,000 new prison places, expanding electronic tagging on an unprecedented scale, and investing in probation services at record levels.

"We are also exploring how we can go further, including faster deportation of foreign criminals, better use of the women's estate and reviewing the unjust IPP sentences."

The prime minister has asked the justice secretary to present a plan for further changes of the early release scheme to parliament next month.

Phillipson confirmed that "full details" would be set out before parliament next week.

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