Apologies for bad english in advance
Heller could have said-'He is mar' is a blind clue left by Red J himself. The 7 suspects might have been revealed by Jane to someone during a psychotic break. Lorelei maybe- all the time he spent with her? Would be interesting if Jane actually had a psychotic break at the end of 4- when he thought he was faking it. Blake A was needed maybe cos it does seem logical that Red J would need people to collect all the info he required. But mcallister could have been shown as some sort of a puppet master- rather than an actual member
Showdown in red J ep should have been structured differently. maybe red J captured Jane and made him listen to all his plans?
Red J should not have been in an official position (sheriff or bertram's role). Official work involves a lot of paperwork- and somehow I do not see Red J doing any such work. Showman- paralleling Jane (Stiles) suits him better
The lead characters should have continued in their platonic way forever.