Reinaldo Goncalo Bertoni Filho, 41, was snared when DNA he provided as part of the vetting process to join the British Transport Police linked him to attacks in two nature reserves in Surrey.
Richard Burrows, 81, 'ruined countless lives' as he systematically abused 24 boys across Cheshire and the Midlands between 1968 and 1995, a judge said today.
Ifor Whittaker, 80, was condemned as a 'predatory paedophile' when he was sentenced to life imprisonment with a minimum of eight years in November last year.
Tyler Eastley, 26, was jailed for nine years in 2018, with an extra year on licence, for sexually assaulting the little girl whilst he was babysitting four young children for a couple who trusted him.
Nalika Ranasinghe (pictured) exchanged 1,200 messages with a person he thought was a 14-year-old girl who was in fact a decoy account set up by an online child activist group.
Richard Burrows, a former boarding school housemaster and scout leader, had admitted 43 offences and denied 54 others, which jurors convicted him of today.
The Kyodo News agency, NHK television and other outlets say police in the Aichi prefecture, a region in central Japan, took several men aged in their 30s, 40s and 50s into custody.
The bespectacled surgeon is accused of assaulting or raping 299 boys and girls over three decades - many of whom were under anaesthetic following surgical procedures.