Yes, it's terribly confusing!
Two different women went missing - the one thing they had in common was they were both married to same man (Chad Hunt). One was Clara Morgan O'Brien - Clara's body was found and identified December 2020. Husband is under investigation for her death. The other woman/wife is Valerie Hunt - her family said they last heard from her in July 2020 when she was in the Licking Creek area. Valerie is still considered missing from what little bit of reading I've done.
I would think law enforcement would obviously/immediately compare DNA from UID to Valerie - since one wife (Clara) went missing and was found dead. Maybe they did and she was ruled out... I don't know. I still haven't checked to see if Valerie is listed in Namus.
JMO - Meth/drug use involved.
Clara O'Brien
There is Clara O'Brien, who's body was found.
This is an obituary for Clara Morgen O'Brien.
Clara Morgan O'Brien Reynolds Obituary - Pikeville, Kentucky , Community Funeral Home | Tribute Archive She left
her companion (named R.R. in the obituary and not Hunt) and a son, among other family members.
Update: Body found in Pike County is missing woman, man arrested in the case
She had last contact with Hunt on 18th December 2020, was reported missing on December 21, 2020 and according to the obituary she passed on December 28 2020.
What was the relation between O'Brien and Hunt? Are we sure they were married?
About finding O'Brien's body
According to an arrest citation, troopers responded to Chadwick Hunt’s house on Lick Creek Sunday, where they found a woman’s body on the property. During their investigation, Hunt told police the woman had died and he moved her body to where she was discovered.
Valorie Hunt, missing person
Another woman is missing, namely Hunt's wife Valorie Hunt. Here is her Namus file.
The National Missing and Unidentified Persons System (NamUs)
She is missing since July 30, 2020 and was reported missing August 12, 2020.
Was last seen at her (Valorie Hunt) residence of 9038 Lick Creek. According to Valorie Hunt's husband, Valorie Hunt left in the early hours in the morning by vehicle. He could not tell who was in the vehicle that Valorie Hunt left in.
One source states
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Valorie is 5′8″ tall and 160 pounds, with brown eyes and curly dark brown hair.
Namus: 5'7, 140 lbs, brown hair
Then there is the UID in this thread (found on September 28, 2020) There are no useful stats for the UID, besides a very broad age range and that the remains were female;
Anthropology consult obtained: likely white female between 29-88 years old
I agree with you...you expect that LE would compare the remains with Valorie Hunt, but it looks like there is not much to compare.