BBC News, Bedfordshire
BBC News, Bedfordshire

A man who killed his mother and two siblings was also planning to commit a mass shooting at his former primary school, police have confirmed.
Nicholas Prosper shot dead Juliana Falcon, 48, Kyle Prosper, 16, and 13-year-old Giselle Prosper at their home in Luton in September.
The 19-year-old intended to carry out an attack at the school and a loaded shotgun with more than 30 cartridges was found in a bush after his arrest, police said.
He pleaded guilty to three counts of murder at Luton Crown Court on Monday.
Det Ch Insp Sam Khanna, from Bedfordshire Police, said âfortunately Prosper was apprehended before he could cause any further harmâ.
âThis 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,â said Det Ch Insp Sam Khanna.
âWhat was subsequently uncovered during our investigation left no doubt as to his intentions to carry out an attack at a school.â
Speaking outside court, he added that his team was in âshock and disbeliefâ when they learned of his plans to target St Josephâs Catholic Primary School in Luton.

Assistant Chief Constable John Murphy said Prosper planned to cause maximum harm to the âwider communityâ.
âWe are extremely grateful to our officers who stopped him and prevented him from going through with his plans.â
Mr Murphy said police were working with the council to give support, assistance and guidance to schools and parents.
At a press conference he added that âcomprehensive inquiries demonstrate that this was a single perpetrator acting in isolationâ.
Maureen Murphy, the head teacher at St Josephâs, said in a statement that all the children from the family had attended the school and had been a âcherished partâ of its community.
She said parents could be reassured there was no threat to the school and that ârobustâ safety systems were in place.
âWe are proud to be a multicultural Catholic school where the safety of children will always be our number one priority and this will never be compromised,â said Ms Murphy.
The leader of Luton Council, Hazel Simmons MBE, said the council had recently asked schools to conduct a security review following the fatal knife attack in Sheffield â but said all of them would be asked to conduct a further review.

Officers were called to the family flat in Leabank, off Wauluds Bank Drive, at about 05:30 BST after a concerned neighbour said they heard a disturbance.
An inquest at Bedford Coronerâs Court in October was told that all three of the victims died from gunshot wounds to the head.
Speaking previously Det Supt Rob Hall, from the regionâs major crime unit, said officers who arrived at the scene were âmet with such awful circumstancesâ.
Prosper was arrested shortly after and the firearm was found in the bushes during a search of the surrounding area.
Shortly after the murders, Kyleâs most recent school in Luton said it was âdeeply saddenedâ by his death.
âThis is devastating news to all those who knew and loved Kyle and it will take some time to come to terms with the profound sense of loss,â the school said.
The head teacher at Giselleâs secondary school said in a statement: âGiselle was a beautiful soul and a model pupil.
âShe excelled in all her subjects and will be sorely missed, particularly by her friends in Year 9.â

Prosper is on remand at HMP Peterborough, but he appeared for the hearing which lasted less than 10 minutes.
He wore a black t-shirt, dark trousers and black rimmed glasses as he entered his pleas.
The 19-year-old sat with his arms folded when he entered the dock.
As well as admitting the three murders, he pleaded guilty to purchasing or acquiring a shotgun without a certificate, possessing a firearm with intent to endanger life and possessing an article with a blade or point.
He is due to be sentenced on 5 March.