Nicholas Prosper, from Luton, Bedfordshire, slaughtered his mother Juliana Falcon, 48, and his siblings Giselle Prosper, 13, and Kyle Prosper, 16, in September of last year.
A teenager in Luton, UK, Nicholas Prosper, murdered his mother and two siblings with a shotgun and planned to kill at least 30 children and teachers at a primary school. He was stopped by police while en route to the school. Footage shows him practicing with a wooden plank as a gun before the murders. He desired to be a notorious mass killer, aiming to surpass the Virginia Tech massacre death toll.
