'One of most depraved offenders ever encountered'published at 12:42 Greenwich Mean Time 19 February 2018
Matthew Falder has been jailed for 32 years following a four-year, worldwide investigation into the dark web paedophile that involved security services from the US, Australia, New Zealand, Israel and Europe.
He is 29 and a Cambridge graduate from Edgbaston, Birmingham.
His Twitter feed revealed a love of dinosaurs, baking and table-tennis. But behind the scenes, he operated under anonymous online usernames to share videos and images of paedophilia

Falder was the subject of surveillance for three months, with officers covertly filming him as he used his laptop on the train
Police said the 29-year-old simply enjoyed inflicting pain, while officers at the National Crime Agency (NCA) described him as one of the most prolific and depraved offenders they had ever encountered.