LONDON: A UK teenager who killed three family members and planned to outdo notorious US massacres to become “the world’s most ...

Murderer Nicholas Prosper became obsessed with a child character called Clementine, which featured in a video game inspired ...

Nicholas Prosper, 18, shot dead his mother and siblings in their Luton home before setting off for a primary school were he ...

A SADISTIC teen who wanted to be the UK’s worst mass killer has been jailed for life after slaughtering his family in cold ...

Nicholas Prosper used an illegally-owned shotgun to kill his mother, his sister and his brother and also planned to carry out ...

Serial killer Nicholas Prosper, 19, was on a bloodthirsty mission to commit the 'biggest massacre in the 21st century' after exploiting a terrifying loophole in gun laws to buy a shotgun.

Nicholas Prosper killed his mother, sister and brother using an illegally-owned shotgun, before plotting what he called "the ...

Nicholas Prosper, 19, used an illegally-owned shotgun to kill mum Juliana Falcon, 48, brother Kyle, 16, and sister Giselle, ...

Nicholas Prosper, 19, killed Juliana Falcon, 48, Kyle Prosper, 16, and Giselle Prosper, 13, at a block of flats in Luton, ...

Illustration by Chloe Dowling for TIME (Source Images: Archive Photos—Stringer/, Columbia Pictures/Everett (2), ...