The Court of Appeal has been asked to review the sentence of a teenager who killed three members of his family and planned a school shooting.

Nicholas Propser, 19, has been jailed for life with a minimum term of 49 years for murdering his mother, brother and sister in Luton last year.

The bodies of Juliana Falcon, 48, Kyle Prosper, 16, and Giselle Prosper, 13, were found at their home in the Leabank Court tower block in September.

The government’s solicitor general has argued that Prosper should have received a whole life order instead, which would mean he would never be released from jail.

The Attorney General’s office had received a request to consider Prosper’s sentence under the Unduly Lenient Sentence scheme.

In March, the Conservative shadow justice minister Kieran Mullan had questioned why a whole life order was not imposed in a post on X and said he referred the case to the scheme.