I thought I read that the rape stuff was Japanese cartoons (anime), collectible more as a bizarre window into a dark corner of a foreign culture than as "wank material". Cartoons, by definition, cannot be kiddie porn. Didn't the Supremes so rule recently?
Wasn't the vast majority of his collection (99+%) normal adults with big tits?
The porn evidence comes across less as incriminating than as an unethical attempt to bolster a weak and incomplete murder case with irrelevant accusations.
I'm sure the thousands of people in prison on alot less of that kind of thing which they have on Westerfield do as well.