The final act of Juliana Falcon’s life, in the minutes before she was shot dead by her son, potentially saved dozens of others.
Realising the unthinkable about her child, her intervention was crucial in preventing him from carrying out what could have been one of the worst mass killings ever to happen in the UK.
Police believe Juliana spotted the shotgun and confronted her son about what he was up to, and there was a struggle as he began attacking his mother.
Her intervention changed everything.
Image: Giselle and Kyle Prosper (below) were both killed by their older brother. Pics: Bedfordshire Police
Prosper, 18, shot his mother dead with the firearm he had bought illegally less than 24 hours earlier.
Over the next few hours in the family’s eighth-floor flat in Luton, he also shot dead his 13-year-old sister, Giselle, and shot and repeatedly stabbed his 16-year-old brother, Kyle.
The noise of the killings alerted neighbours and meant police would be on their way, so Prosper’s plan had to be brought forward.
“My f****** mum messed it up,” he wrote down while in custody. “My mother is a f****** stupid cow.”
A plan for ‘notoriety’
Image: Prosper has admitted killing his family
Prosper left the flat at 5.30am on 13 September last year, hours before the school would open.
He had meticulously researched school massacres, was fascinated by violence and led a dysfunctional life online. He craved notoriety.
He took with him more than 30 shotgun cartridges which, he had calculated, would enable him to kill more children than any other school attack.
When he was arrested, he was on his way to his old primary school to target the youngest children there, aged just four and five.
Image: Prosper deceived a seller to obtain the shotgun. Pics: Bedfordshire Police
In a note he later wrote in prison, he confessed he “wanted to cause the biggest [school] massacre in the 21st century and be more famous than Sandy Hook”.
A total of 26 children were killed at Sandy Hook Elementary School in Connecticut, USA in 2012. The killer there had shot dead his own mother at home before going to the school.
Prosper’s mother’s actions in Luton, disturbing his plan early, denied him that appalling place in history.
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3:03
Killer ‘seemed really calm’ – neighbour
Senior investigating officer Detective Chief Inspector Sam Khanna, of Bedfordshire Police, told Sky News that Prosper’s ambition “was most definitely notoriety… to be known as being responsible for the biggest school shooting on record.”
He had researched in detail every shooting school shooting across the world “within the last 15, 20 years,” he said.
“He’d done his sums, and he wanted to be responsible for the most amount [of deaths]. Killing his family was the first part of it. But then going to a school and killing numerous children, teachers, then finally himself.”
Concerns raised
Image: St Joseph’s Catholic Primary, Prosper’s former school, was the intended target
Prosper was raised in Luton and had attended St Joseph’s Catholic Primary School, where he planned to carry out an attack three-quarters of a mile from his home.
Growing up, teachers thought he was a quiet, introverted boy, with a small group of friends who were interested in computers.
When he went to sixth form aged 16, staff noticed he had become more withdrawn.
The school raised concerns that he could be on the autism spectrum, but he refused to see a GP or accept any help.
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0:24
Prosper pretends plank of wood is a gun
DCI Khanna said “very little” was known of Prosper, and “there was certainly no Prevent referral”.
Prevent is the UK’s counter-terrorism programme designed to identify and stop young people being radicalised.
Both of Prosper’s parents “had expressed concerns to the school”, the detective said.
The school had shared those concerns, he said, “but because of his unwillingness to engage with mental health professionals, it didn’t go any further”.
A consultant forensic psychiatrist concluded the teenager shows “all the symptoms of Autism Spectrum Disorder (ASD)” but that it was undiagnosed at the time of the killings. He said Prosper has “an extreme lack of empathy with others and an extreme lack of remorse”.
Image: Prosper was filmed buying the firearm. Pic: Bedfordshire Police
So how was an 18-year-old able to source a shotgun? The answer is by deception.
Prosper convinced a legitimate seller, who had only previously sold to registered firearms dealers, to deliver the weapon to him.
The teenager produced a convincing but fake shotgun certificate and paid the seller £650 in cash and an extra £30 petrol money to bring the gun and 100 shotgun cartridges to Luton the day before the killings.
Bedfordshire Police investigated and concluded the seller would not face criminal charges. He had been duped by Prosper.
DCI Khanna said Prosper “went to great lengths, looking at templates, looking at prototypes, getting police force logos, signatures, and having copies of genuine certificates, so he could produce what he thought would be good enough to enable him to obtain that shotgun – even down to the printing of the paper with watermarks”.
Prosper spent a lot of time online alone in his bedroom posting troubling comments supporting sexual relationships between adults and children and expressing other extreme views.
He had also become obsessed with the Walking Dead video game, and particularly a character called Clementine who is a vulnerable young girl.
Image: Detective Chief Inspector Sam Khanna, of Bedfordshire Police
Detectives can’t say if there is a direct link between his “avid use” of the game and the school shooting plan, but it is one aspect of a complex and unhealthy life he led online.
DCI Khanna said Prosper “certainly believed that he had some form of relationship with Clementine, albeit she’s a video game character”.
Police also found indecent images of children on Prosper’s devices.
The investigator said his online research of school massacres was persistent and extremely detailed.
“There’s a lot of talk about the dark web, but this was on the surface web and sites where… you can read manifestos of people that have done horrific acts. They shouldn’t be available to be seen.”
After his arrest, Prosper told a nurse at Bedford prison about his school massacre intentions. He had also written two detailed plans of what he intended to do at the primary school he used to attend.
“We didn’t find any evidence that he had harboured any grudges towards that particular school… it was purely around his knowledge of it,” DCI Khanna said.
After killing his family, he left home “with the right amount of cartridges to complete his plan, right down to the final detail”, he added.
“Once in prison, he has openly talked about the fact that that was his plan – to go to the school and kill children and teachers before finally killing himself.”
Prosper had chosen black and yellow clothes for the attack and as he made his way towards the school in Luton he was spotted by police officers on patrol.
They thought he was acting strangely and knew three members of the same family had been shot dead nearby.
“It’s not murder,” he repeatedly told the officers as they handcuffed him by the roadside.
Months later, he pleaded guilty shortly before he was due to stand trial.
Image: Prosper pictured walking to the school on the morning of his planned attack. Pic: Bedfordshire Police
Remembering the victims
The dilemma of whether to make his school shooting plan public has been difficult for police and prosecutors.
It is clearly deeply upsetting for the school community and they are mindful that Prosper craved attention and publicity, but it is also about challenging this kind of extreme behaviour online.
DCI Khanna’s investigation team has examined this “deeply troubling” case with the victims at the forefront of their minds.
“The family has really told us what wonderful people they were,” he said.
Juliana, he said, was “a doting mum who did a lot of work for charity and [was] a very keen runner”.
He described Giselle as “so popular amongst friends, a bright girl with an infectious smile”, while Kyle was a “funny young man, really into his sports and again very popular at school with his friends”.
Now, DCI Khanna said, the focus should be on the victims – “and how much they’ll be missed”.
Another hint that tax rises are coming in this autumn’s budget has been given by a senior minister.
Speaking to Sunday Morning with Trevor Phillips, Transport Secretary Heidi Alexander was asked if Sir Keir Starmer and the rest of the cabinet had discussed hiking taxes in the wake of the government’s failed welfare reforms, which were shot down by their own MPs.
Trevor Phillips asked specifically if tax rises were discussed among the cabinet last week – including on an away day on Friday.
Tax increases were not discussed “directly”, Ms Alexander said, but ministers were “cognisant” of the challenges facing them.
Asked what this means, Ms Alexander added: “I think your viewers would be surprised if we didn’t recognise that at the budget, the chancellor will need to look at the OBR forecast that is given to her and will make decisions in line with the fiscal rules that she has set out.
“We made a commitment in our manifesto not to be putting up taxes on people on modest incomes, working people. We have stuck to that.”
Ms Alexander said she wouldn’t comment directly on taxes and the budget at this point, adding: “So, the chancellor will set her budget. I’m not going to sit in a TV studio today and speculate on what the contents of that budget might be.
“When it comes to taxation, fairness is going to be our guiding principle.”
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Afterwards, shadow home secretary Chris Philp told Phillips: “That sounds to me like a barely disguised reference to tax rises coming in the autumn.”
He then went on to repeat the Conservative attack lines that Labour are “crashing the economy”.
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10:43
Chris Philp also criticsed the government’s migration deal with France
Mr Philp then attacked the prime minister as “weak” for being unable to get his welfare reforms through the Commons.
Discussions about potential tax rises have come to the fore after the government had to gut its welfare reforms.
Sir Keir had wanted to change Personal Independence Payments (PIP), but a large Labour rebellion forced him to axe the changes.
With the savings from these proposed changes – around £5bn – already worked into the government’s sums, they will now need to find the money somewhere else.
The general belief is that this will take the form of tax rises, rather than spending cuts, with more money needed for military spending commitments, as well as other areas of priority for the government, such as the NHS.
It is “shameful” that black boys growing up in London are “far more likely” to die than white boys, Metropolitan Police chief Sir Mark Rowley has told Sky News.
In a wide-ranging interview with Sunday Morning with Trevor Phillips, the commissioner saidthat relations with minority communities are “difficult for us”, while also speaking about the state of the justice system and the size of the police force.
Sir Mark, who came out of retirement to become head of the UK’s largest police force in 2022, said: “We can’t pretend otherwise that we’ve got a history between policing and black communities where policing has got a lot wrong.
“And we get a lot more right today, but we do still make mistakes. That’s not in doubt. I’m being as relentless in that as it can be.”
He said the “vast majority” of the force are “good people”.
However, he added: “But that legacy, combined with the tragedy that some of this crime falls most heavily in black communities, that creates a real problem because the legacy creates concern.”
Sir Mark, who also leads the UK’s counter-terrorism policing, said black boys growing up in London “are far more likely to be dead by the time they’re 18” than white boys.
“That’s, I think, shameful for the city,” he admitted.
“The challenge for us is, as we reach in to tackle those issues, that confrontation that comes from that reaching in, whether it’s stop and search on the streets or the sort of operations you seek.
“The danger is that’s landing in an environment with less trust.
“And that makes it even harder. But the people who win out of that [are] all of the criminals.”
Image: Met Police Commissioner Sir Mark Rowley
The commissioner added: “I’m so determined to find a way to get past this because if policing in black communities can find a way to confront these issues, together we can give black boys growing up in London equal life chances to white boys, which is not what we’re seeing at the moment.
“And it’s not simply about policing, is it?”
Sir Mark said: “I think black boys are several times more likely to be excluded from school, for example, than white boys.
“And there are multiple issues layered on top of each other that feed into disproportionality.”
‘We’re stretched, but there’s hope and determination’
Sir Mark said the Met is a “stretched service” but people who call 999 can expect an officer to attend.
“If you are in the middle of a crisis and something awful is happening and you dial 999, officers will get there really quickly,” Sir Mark said.
“I don’t pretend we’re not a stretched service.
“We are smaller than I think we ought to be, but I don’t want to give a sort of message of a lack of hope or a lack of determination.”
“I’ve seen the mayor and the home secretary fighting hard for police resourcing,” he added.
“It’s not what I’d want it to be, but it’s better than it might be without their efforts.”
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0:39
How police tracked and chased suspected phone thief
‘Close to broken’ justice system facing ‘awful’ delays
Sir Mark said the criminal justice system was “close to broken” and can be “frustrating” for police officers.
“The thing that is frustrating is that the system – and no system can be perfect – but when the system hasn’t managed to turn that person’s life around and get them on the straight and narrow, and it just becomes a revolving door,” he said.
“When that happens, of course that’s frustrating for officers.
“So the more successful prisons and probation can be in terms of getting people onto a law-abiding life from the path they’re on, the better.
“But that is a real challenge. I mean, we’re talking just after Sir Brian Leveson put his report out about the close-to-broken criminal justice system.
“And it’s absolutely vital that those repairs and reforms that he’s talking about happen really quickly, because the system is now so stressed.”
Giving an example, the police commissioner went on: “We’ve got Snaresbrook [Crown Court] in London – it’s now got more than 100 cases listed for 2029.”
Sir Mark asked Trevor Phillips to imagine he had been the victim of a crime, saying: “We’ve caught the person, we’ve charged him, ‘great news, Mr Phillips, we’ve got him charged, they’re going to court’.
“And then a few weeks later, I see the trial’s listed for 2029. That doesn’t feel great, does it?”
Asked about the fact that suspects could still be on the streets for years before going to trial, Sir Mark conceded it’s “pretty awful”.
He added: “If it’s someone on bail, who might have stolen your phone or whatever, and they’re going in for a criminal court trial, that could be four years away. And that’s pretty unacceptable, isn’t it?”
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She pinned the primary blame for the Met’s culture on its past leadership and found stop and search and the use of force against black people was excessive.
At the time, Sir Mark, who had been commissioner for six months when the report was published, said he would not use the labels of institutionally racist, institutionally misogynistic and institutionally homophobic, which Baroness Casey insisted the Met deserved.
However, London Mayor Sadiq Khan, who helped hire Sir Mark – and could fire him – made it clear the commissioner agreed with Baroness Casey’s verdict.
A few months after the report, Sir Mark launched a two-year £366m plan to overhaul the Met, including increased emphasis on neighbourhood policing to rebuild public trust and plans to recruit 500 more community support officers and an extra 565 people to work with teams investigating domestic violence, sexual offences and child sexual abuse and exploitation.
A leading NHS hospital has warned measles is on the rise among children in the UK, after treating 17 cases since June.
Alder Hey Children’s Hospital in Liverpool said it is “concerned” about the increasing number of children and young people who are contracting the highly contagious virus.
It said the cases it has treated since June were for effects and complications of the disease, which, in rare cases, can be fatal if left untreated.
“We are concerned about the increasing number of children and young people who are contracting measles. Measles is a highly contagious viral illness which can cause children to be seriously unwell, requiring hospital treatment, and in rare cases, death,” the hospital said in a statement to Sky News.
In a separate open letter to parents and carers in Merseyside earlier this month, Alder Hey, along with the UK Health and Security Agency (UKHSA) and directors of Public Health for Liverpool, Sefton and Knowsley, warned the increase in measles in the region could be down to fewer people getting vaccinated.
The letter read: “We are seeing more cases of measles in our children and young people because fewer people are having the MMR vaccine, which protects against measles and two other viruses called mumps and rubella.
“Children in hospital, who are very poorly for another reason, are at higher risk of catching the virus.”
What are the symptoms of measles?
The first symptoms of measles include:
• A high temperature
• A runny or blocked nose
• Sneezing
• A cough
• Red, sore or watery eyes
Cold-like symptoms are followed a few days later by a rash, which starts on the face and behind the ears, before it spreads.
The spots are usually raised and can join together to form blotchy patches which are not usually itchy.
Some people may get small spots in their mouth too.
What should you do if you think your child has measles?
Ask for an urgent GP appointment or call 111 if you think your child has measles.
If your child has been vaccinated, it is very unlikely they have measles.
You should not go to the doctor without calling ahead, as measles is very infectious.
If your child is diagnosed with measles by a doctor, make sure they avoid close contact with babies and anyone who is pregnant or has a weakened immune system.
Image: The skin of a patient after three days of measles infection
It comes after a Royal College of Paediatrics and Child Health (RCPCH) report released earlier this month determined that uptake of vaccines in the UK has stalled over the last decade and is, in many cases, declining.
It said none of the routine childhood vaccinations have met the 95% coverage target since 2021, putting youngsters at risk of measles, meningitis and whooping cough.
The MMR vaccine has been available through the NHS for years. Two doses gives lifelong protection against measles, mumps and rubella.
Image: Two doses of the MMR vaccine give lifelong protection against measles, mumps and rubella. Pic: iStock
According to the latest NHS data, Liverpool was one of the cities outside London with the lowest uptake of the MMR vaccination in 2023-2024.
By the time children were five years old, 86.5% had been give one dose, decreasing to 73.4% for a second dose.
The RCPCH report put the nationwide decline down to fears over vaccinations, as well as families having trouble booking appointments and a lack of continuous care in the NHS, with many seeing a different GP on each visit.
In the US, measles cases are at their highest in more than three decades.
Cases reached 1,288 on Wednesday this week, according to the US Centres for Disease Control and Prevention, with 14 states battling active outbreaks.
The largest outbreak started five months ago in communities in West Texas, where vaccination uptake is low. Since then, three people have died – including two children in Texas and an adult in New Mexico – with dozens more in hospital.