Some points that R "clear" to me:

Partridge IS dead...
Bruno Heller might be lying to us (he has done it before...) but it's hard to say where that lie could be...
Rosalind H description of RJ is LAUGHABLE... She's blind and she's lied before too...
The list of 7 is a trick from Patrick...
Sheriff McAllister did not appear in pilot episode BUT in 2nd and that "little detail" is waaaaaaaaaaaaay important in my humble opinion...
He fits the man who poisoned Rebecca's description IMO and, "as a Sheriff" seems very capable of several facts that could lead us to think he might be the one...
All persons included in the list of 7 are close to RJ...

Sheriff McAllister will be Red John...