This is just my opinion..but I think JD make not be as egregious as we've been led to believe...
the masked person at tail end of episode 3..."How are you feeling Cora?"... I WOULD SWEAR that is husband/Mason's voice! The last masked person leaning down to look under the bed had a higher register voice.
Mason is part of this..somehow involved in the 'Hunt (humans) Club'.
The 'last call bell' from the tavern is sets the stage. JD, Cora, Mattie and others from JD's house party end up there...AS WELL AS some hunt club members. At last call/ clear sing time...an after party back at club where all hell breaks loose.. ppl are drugged..hunted..hurt..and deals are cut. JD took an injury to the leg...even though we are led to believe it may be from Lhymes disease.
That is why Mason..after Cora stammered at first hearing (prompting judge to order psych eval) asked "What are you doing?" as in..what happened..?... you were going to plead guilty!!!
Mason=bad
JD= bad..but not as bad as hubby