quite. and with brady it's clearly deliberate (or at least, imo). The whole character of Brady's crimes was about torturing people - holding all the power. Afaic he's got off on torturing those still desperate to bury their child, and he's been getting off on it for half a century now.
Perhaps i'm only recently coming to a conclusion that was evident to everyone else for ages but...
I think that when we hear of these crimes, we try to make sense of the horror if we can. make some empathetic leaps... so *if* i was a paedophile and *if* i acted on that and *if* it then went somehow wrong and i ended up killing the child (because the defence story plants that 'accidental death' seed in our mind)... that makes me bad and in need of punishment, but surely i'd also feel remorse and want to make things better for the families.
but i think that's where we go wrong. the whole point is that killing kids doesn't end up being something that even remotely comes close to happening to us... BECAUSE we are not like these men and women. People who get to that point are people who enjoy hurting people. who like making people suffer - it's intrinsic to their personalities because if it wasn't, they would have never have got close to committing one of these extreme crimes.