Message in the Locket

[owen]

No: HPFGUIDX 160979

Stephanie:
> Did anyone understand the message in the locket, in HP&HBP?  I
> understand that it will probably be explained in Book 7, but I'm
> hoping for speculation.

Owen:
Whoever R.A.B. is or was...I think we can set it aside for a
meantime...what is important is he FOUND the Horcrux and DESTROYED
it... we can only guess who it is though the probability it is Regulus
Black is I think 40% i guess... we can only speculate :)