RAB case is broken - all Aurors please read!

[Hagrid]

No: HPFGUIDX 153281

---  "Tonks" <tonks_op...> wrote:
>
> ---  "leslie41" <leslie41> wrote:(-SNIP-)
> 
> > I like your theory a lot, but I don't know if I can reconcile it 
> > with the translation evidence.
> >
> 
> Tonks: (-SNIP-)
> we have to consider the possibility that Regulus was alive on the 
> night of DD's death. 
> 
> If he was still alive, was he the one on the grounds? How did he  
> get the locket from Aberforth? Does Aberforth know him? Are they  
> working together? Is this how DD found out about the Horcruxes in 
> the first place?  Is Regulus hiding out at the Hogshead? "They 
> can't kill you if you are already dead" might apply to him.  If so 
> we might have seen him before somewhere.  Who do we know him as??  
(-SNIP-)
> 
> I hold to the 2 things that I am sure of:
> 
> 1. DD and Harry did get the real locket in the cave and it was  
> still a horcrux.
> 2. By the time that Harry got to DD's body the other locket was 
> there and the real locket was gone.
> 
> (-SNIP-)
> 
> So if RAB is not Aberforth and is Regulus it still holds that the 
> locket was a horcrux when DD got it out of the cave and that the 
> real locket was in DD's possession upon his death and was switched 
> after his death while he was on the ground.
> 
> Tonks_op
>
~aussie~
- Who do we know Regulus as? 
- What do we really know about Filch?  

Just as DD kept Trelawney on in Hogwarts, more for her own 
protection as the medium who revealed the prophecy, I am wondering 
what Filch is doing there.

As a Squib, no wizard would have remembered going to school with 
Filch (so none of the parents could talk about his background). As 
the Cranky caretaker, no student (and few teachers) get personal 
with him. If Regulus wanted DD's protection inside Hogwarts, that 
squib would be the perfect disguise.

Can anyone find canon proof to support or reject this suggestion?

for example: 
- How far back was he in Hogwarts? After James or further back? 
- He had the Maunderer's Map. One of the Maunderers being Sirius.
- Would Regulus accept memory altering charm or would he act out any 
disguised role? Would he accept the "aging draft" the twins tried to 
use to get their names into the GOF?

The best place JKR could hide something is right under our noses.