I am doubtful there will be charges with regards to Anjelica's death, unless someone comes forward to tell what happened that night. Not sure murder or even intent of any kind can be proven at this point. Jmo
ETA thinking about Haleigh Cummings and how a pack of druggies have not cracked after what, over six years now? Or longer?
I hope that isn't the case when it comes to AJ, as she has three younger sisters to think of who may be in a vulnerable a situation in the future as AJ was before she died. I doubt Wes would have given an interview, nor his mom, if he wasn't feeling some heat. He's familiar with the system so knows how to help himself, seems plausible.
My impression is it's their attempt at trying to frame the information released by the ME about the COD. It seems as if he's introducing reasonable doubt before the trial even starts with the way he says things. I guess he knows a defense lawyer can then refer to it without Wes having to lie in court about it, or something, as Dex pointed out earlier.