Extreme online violence may be linked to rise of ‘0 to 100’ killers, experts say

Criminal justice specialists call for new approach to identify emerging type of murderer with no prior convictions

The rise of 0 to 100" killers who go from watching torture, mutilation and beheading videos in their bedrooms to committing murder suggests there could be a link between extreme violence online and in real life, experts have said.

Criminal justice experts advocated a new approach, inspired by counter-terrorism, to identify an emerging type of murderer with no prior convictions, after cases such as Nicholas Prosper, who killed his mother and siblings and planned a primary school massacre.