Overview

• Nicholas Prosper, 19, admitted to murdering his mother and two siblings in September 2024 and plotting a mass school shooting for notoriety.
• In March 2025, Luton Crown Court sentenced Prosper to life imprisonment with a 49-year minimum term, citing his age and guilty plea as mitigating factors.
• Shadow justice minister Kieran Mullan challenged the sentence as unduly lenient, prompting the Attorney General's Office to refer the case to the Court of Appeal.
• The Solicitor General will argue that Prosper’s crimes meet the threshold for a whole-life order, despite judicial guidelines requiring 'exceptional circumstances' for offenders aged 18-20.
• The Court of Appeal will now determine whether the original sentence should be increased to reflect the extraordinary gravity of Prosper's actions.