This is purely speculation on my part, an induction based on the evidence I have seen regarding Jimmy Savile, Peter Sutcliffe and Ian Watkins.

Jimmy Savile was known to be in possession of the keys to Broadmoor and several other facilities. (Stoke Mandeville, for instance. I realise that Stoke Mandeville is a hospital, but it was a government institution all the same.)
Could there be more to the fact that Savile was in possession of the keys to Broadmoor etc, beyond his wicked perverted interests in abusing people?

Peter Sutcliffe was imprisoned at Broadmoor and knew Jimmy Savile.
Jimmy Savile was questioned regarding the Yorkshire Ripper murders and there is doubt that Peter Sutcliffe solely perpetrated the murders.

It has been argued that Jimmy Savile was involved in Ceremonial and Black Magic rituals. (Search You Tube for a video with the title "Was Jimmy Savile a Witch?")
Plus, there were reports in the Mainstream Press that he was involved in a Black Mass.

Aleister Crowley, a known Black Magician, lived at Boleskine House, a secluded one storey house on the shores of Loch Ness, in order to carry out a particularly arduous and dangerous Ritual.
It should be noted that some allege that Aleister Crowley promoted pedophilia and child sacrifice in his writings.

Ian Watkins is a known Paedophile and struck me as very unconcerned by his prison sentence and incarceration.

Could it be that Jimmy Savile used Broadmoor Prison for Rituals?

Furthermore, could the reason that Ian Watkins was incarcerated is that he is an adherent of Black Magic and is engaged in a ritual of some kind in Prison?

Prisons would be an ideal place for a magical working as they are often secluded and not open to public scrutiny.
Such a secret Black Magic ritual could be accomplished if key figures inside a given institution were compromised and blackmailed into assisting.
Is anyone aware of any links Ian Watkins may have to the occult?