A teenager who murdered three members of his family stabbed his brother more than 100 times, a court has heard. Nicholas Prosper shot his mother Juliana Falcon, 48, and sister Giselle Prosper, 13, and shot and stabbed his brother Kyle Prosper, 16, at their family home in Luton, Bedfordshire, on September 13 last year.
The 19-year-old then planned to carry out a mass shooting at his former primary school before he was arrested.
Opening his sentencing at Luton Crown Court, prosecutor Timothy Cray KC told the court Ms Falcon was killed with a single shot to the top of the head, while Giselle died from a single penetrating wound over the right eye and there was evidence of impact from a second shot.
On Kyle’s cause of death, the prosecutor said: “The pathologist found two shotgun wounds, one to the right side of the chest and one to the top of the head.
“The nature of Kyle’s injuries is particularly distressing because in addition to the shots, there were over 100 knife wounds found on his body.”
Nicholas Prosper had planned to kill at least 30 children and two of their teachers at his former primary school, Luton Crown Court heard.
The court heard that Nicholas Prosper had undiagnosed autism spectrum disorder (ASD), but displayed “extreme lack of empathy with others and an extreme lack of remorse” that cannot be explained by ASD alone.
After the murders, at around 5.30am, he hid the loaded shotgun in a black and yellow holdall in some bushes in playing fields in Bramingham Road, Luton, and hid his phones in undergrowth. Prosper hid for around two hours, before flagging down police and showing them where he had hidden the weapon, along with 33 cartridges.
The court heard that he had managed to buy the shotgun by making a fake firearms certificate and deceiving a private seller.
“To carry out his plans he had made a high-quality forgery of a shotgun certificate or licence, which he used together with other lies to make the seller believe that this was a lawful sale,” prosecutor Timothy Cray KC said.
“This included learning enough background detail so that he, the defendant, could sound like someone with a legitimate interest in owning a shotgun for clay pigeon shooting. In truth of course, he obtained the gun as a murder weapon, which he used to kill his family and which he was intending to use at the primary school.”
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