Nicholas Propser has pleaded guilty to the murder of his mother, Juliana Falcon, and two younger siblings, Kyle and Giselle Prosper. He has been remanded in custody ahead of sentencing at Luton Crown Court on 5 March.
Nicholas Prosper, 19, of Leabank Court, Luton, appeared at Luton Crown Court Monday, where he pleaded guilty to three counts of murder.
Falcon, 48, Kyle Prosper, 16, and Giselle Prosper, 13, were shot dead by Prosper at their home address in the early hours of Friday, 13 September 2024.
They were found when a concerned neighbour called police after hearing a disturbance at around 5.30 a.m.
Prosper was arrested by officers shortly afterwards in Bramingham Road, and a loaded shotgun was found hidden in bushes nearby, along with more than 30 cartridges.
Following the triple murder, an investigation was launched by officers from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit.
During the investigation, officers discovered how Prosper had also planned to commit a shooting at a local school but was apprehended by officers before he could carry out his plans.
Detective Chief Inspector 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.”
Assistant Chief Constable John Murphy said, “We understand the deep shock this case will have on people within Luton and across the country. We are working closely alongside Luton Borough Council to engage with schools in Luton to provide support, assistance and guidance to both schools and parents.”
Police and Crime Commissioner John Tizard said, My thoughts are with Juliana, Kyle and Giselle, their family and friends at what must be an incredibly difficult time.”
Councillor Hazel Simmons MBE, Leader of Luton Council, said, “First and foremost, we must remember the three innocent victims of these senseless murders. Our thoughts and prayers are very much with them today, along with their family, friends and the wider community who are still deeply impacted by what happened last year.
“The revelation that the perpetrator had plans to cause further harm in one of our schools is extremely shocking, distressing and upsetting, and we don’t underestimate the emotional difficulty this news will have on children, staff, parents and carers across our school community.
Prosper appeared at Luton Crown Court on Monday (24 February), where he pleaded guilty to three counts of murder, possession of a knife blade in a public place, purchasing or acquiring a shotgun without a certificate and possession of a shotgun with intent to endanger life.