Absolute rubbish!! There were other prints on the weapon just not clear enough for analysis as you would expect - it wasn't wiped!! But you're changing the subject again!!
I wonder why Jones didn't ask Julie to tape Jeremy in one of his many confessions to her? You don't seem to want to comment on that?
He never did directly confess,but dropped the following hints:
1) The hitman story with the £2000 pay off.
2)A glove came off in the fight with Nevill.
3)"I'm the only one who knows what happened that night"
4) "So I either stay with you or confess to Essex Police".
5) "I don't feel anything for any of them..maybe there is something wrong with me.."
This was in addition to his expressed loathing of his parents to Julie,his contemplation over months how and if he could bring himself to do it,his speculation to Charles Marsden about the Farm burning down..