Amelia Bones = RAB?

[Auria]

No: HPFGUIDX 138036

I've not been keeping up with all the posts here so this theory may 
have already been discussed, but I wanted to hear your thoughts on this.

R.A.B - could this be Amelia Bones? My reasoning is that as she was the 
Head of Magical Law Enforcement, the 'R' could be some sort of title (a 
bit like 'PC' for a police constable).
Amelia Bones was murdered, probably by LV himself (as stated by Fudge 
in chapter 1).  Why would LV carry out the deed personally, unless it 
was a significant enemy of his.  If Amelia Bones had stolen the horcrux 
locket and LV found out about it, then he would have reason to hunt her 
down himself.  
If the above is true then could this mean Amelia Bones was a secret 
Death Eater?  There is some sense to this in that the DEs have spies in 
the Ministry of Magic so its very possible.  She could also have been 
the one to have put Herbert Chorley under the Imperius curse.

Thoughts on this anyone?  

Auria