I wonder if the supposed 21-year-old confessor is currently incarcerated for other crimes? Or if he was ever interviewed by LE in regards to this case?
IMO, the jailhouse informant claims to have heard CBR's testimony, so if he was going to come forward with a false claim (for recognition or other self-benefiting purposes), he easily could have made up a story that better matched the masked men testimony.
The second informant coming forward while highly emotional and possibly intoxicated is also no surprise, especially if she was potentially terrified of the repercussions.
It sort of makes me think these claims are legitimate, on the part of the informants, anyway. And if so, the question is what motivation did the 21-year-old have in confessing to these people? Was he involved? Does he wish he was involved because he's demented? He didn't confess to LE, himself, so what benefit did it have to say these things under the supposed conditions he did? Very stange...