Confessions?
snipped for focus
@Cyber sleuth Thx for your post. Just jumping off from it.
Some posts here about the inmate's tales of RA's confessions give me the impression that posters believe the inmates have actually heard RA talking about the events and are accurately reporting RA's stmts to authorities. Were any of RA's alleged confessions known to be RECORDED?
Now speaking generally & not to the specifics of RA, inmates, & exact stmts here:
Some INMATES LIE.
Shocking isn't it?

There may be any number of reasons or no reason. Helps pass time behind bars? Boosts stature in the slam? Lies for the sake of lieing? IDK
Some or all may be incorporating publicly available info from MSM, soc media, local gossip, etc and making up virtually everything else they tell authorities.
Not saying this holds true for all inmates in this case, IDK, but seems to be worth considering ---ETA: Maybe RA did not tell any other inmates anything indicating RA's commission of or involvement in these tragic deaths.
Just thinking aloud/online.
ETA: NOT commenting about my thoughts about whether RA is guilty or NG.