As the patrol car slowed to a stop after the curious officers decided to take a further look, Nicholas Prosper stepped forward, pointing his bloodied palm towards them.

Nicholas Prosper created a fake certificate to buy a shotgun and planned to kill 30 children

Nicholas Prosper, 18, shot dead his mother and siblings in their Luton home before setting off for a primary school were he planned to shoot a classroom of four and five year olds.

This is the chilling moment a teenager smirked after buying the shotgun he used to kill his mother and two siblings in a rampage at home.

A teenager who murdered his family planned to shoot 30 early years children at a primary school in order to become the deadliest mass killer in history, a court heard