There are currently 49 criminals serving whole life terms in English prisons, and David Cameron has vowed to ensure that "life means life" for the worst offences.
Those serving full life terms include Jamie Reynolds, who pleaded guilty to the murder of Shropshire teenager Georgia Williams last year.
Mark Bridger, who was jailed for killing five-year-old April Jones, is also serving a whole life sentence.
More top news
A police officer in today's London Pride parade surprised his partner by proposing in the middle of the parade.
Government minister Justine Greening has apparently opened up about her sexuality, as thousands took part in the London Pride parade.
Record crowds are at this year's Pride in London parade as people show their support for the LGBT community after the Orlando shooting