David Melseaux, who lived in a flat directly above Nicholas Prosper for over a decade, said the teen had never showed any signs he would go on to kill his family

A young man who murdered his mother and siblings in their flat in a shotgun triple killing was planning a school shooting, police have said.

Nicholas Prosper was plotting a shooting at St Joseph's Catholic Primary School in Luton, where he, his brother and sister had all been pupils.

Nicholas Prosper pleaded guilty to the murder of three members of his own family at a court hearing on Monday A teenager's plan to carry out a school shooting after killing three members of his family was "extremely shocking,

Nicholas Prosper, of Leabank, pleaded guilty to the murders of his mother, brother and sister in Luton Crown Court today (February 24). The bodies of 48-year-old Juliana Falcon, Kyle Prosper, 16, and Giselle Prosper,

Nicholas Prosper pleaded guilty to the murders of Juliana Falcon, 48, Giselle Prosper, 13, and Kyle Prosper, 16, at Luton Crown Court on Monday.

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,