Anglesey man, Robert O'Brien, 70, had child porn 'compulsion'
A 70-year-old Anglesey pensioner who had 235,000 images of child sex abuse was "in the grip of a compulsion to collect them", a court has heard.
Robert O'Brien from Benllech, admitted making and possessing indecent photographs of children and having 870 indecent videos of them.
He was bailed for a pre-sentence report at Caernarfon Crown Court.
Judge Philip Hughes said the court will be "considering all its options including a custodial sentence".
James Conod, defending, said: "Mr O'Brien found himself in the grip of a compulsion to collect these images, that was his primary motivation.
"He is extremely ashamed and deeply sorry."