NICHOLAS Prosper was just 18 when he murdered his mum and two younger siblings.
Police revealed the disturbed teen was also plotting a mass primary school shooting.
Juliana Prosper and her two children Kyle and Giselle were found dead inside their home in September 2024[/caption]
Who is Nicholas Prosper?
On September 13, 2024, Nicholas Prosper from Luton killed his mother Juliana Falcon, 48, brother Kyle Prosper, 16, and sister Giselle Prosper, 13, in their home with a shotgun.
Police swarmed the flat at around 5.30 am following “welfare concerns”.
Horrified neighbours claimed they heard “loud bangs” that sounded like shots being fired.
Officers discovered Juliana and two of her four children dead inside the flat.
Prosper was arrested shortly afterward on Bramingham Road, where police found a loaded shotgun hidden in bushes with over 30 cartridges.
Paying tribute, the victims’ family said: “Julie was a strong, loving mother to her four beautiful children, who were her absolute world.”
“In her spare time, she was a keen athlete and enjoyed raising money for charity — she was always putting others first.
“Kyle was a kind and funny young man who loved football and boxing.
“He was creative and thriving on TikTok, a big talent with massive potential. Kyle’s friends were his everything.
“Giselle was a beautiful soul and caring young girl; she liked to laugh lots and loved her family and big brothers.”
Lea Manor High School headteacher Jess Pather also paid tribute to Giselle, saying: “We are deeply shocked at Lea Manor High School by the tragic incident that occurred on Friday in our local community.
“We are devastated by the loss of our pupil, Giselle Prosper. Giselle was a beautiful soul and a model pupil.
“She excelled in all her subjects and will be sorely missed, particularly by her friends in year nine.”
This was a truly tragic and shocking case in which three innocent members of the same family have been brutally killed by their son and brother
DCI Sam Khanna
Planned school attack
During the investigation, authorities uncovered Prosper’s sick plan to carry out a mass shooting at St Joseph’s Catholic Primary School, which he attended as a youngster.
Thankfully he was intercepted by police before reaching the school, preventing further harm.
Prosper was charged with three counts of murder, as well as charges including illegal firearm possession, intent to endanger life and carrying a knife in public.
He appeared at Luton Crown Court on February 24, 2025, dressed in a black T-shirt and glasses, entering guilty pleas to all charges during a brief hearing.
Police officers pictured outside the flat block where the horrific murders took place[/caption]
Sentencing
As of February 25, Prosper remains in custody at HMP Peterborough and will be sentenced on March 5, 2025.
DCI Sam Khanna from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit said: “This was a truly tragic and shocking case in which three innocent members of the same family have been brutally killed by their son and brother.
“No words can fully describe the tragedy their loved ones have experienced, and our thoughts continue to be with them at this difficult time.
“We are pleased that Prosper has pleaded guilty and will not put his family through the pain of a trial, and that he will soon face a significant jail sentence.
“What was subsequently uncovered during our investigation left no doubt as to his intentions to carry out an attack at a school, but fortunately Prosper was apprehended before he could cause any further harm.”
