The contract between CD and JP was signed 06.10.2020 (the day after the bodies were found on CD's property) and the quit claim deed was recorded on 10.29.2020.
https://www.countyoffice.org/property-records-search/?q=202+North+1900+East,+Rexburg,+Idaho,+USA#owner
Independent of your question, since CD and LVD were married, and presuming they didn't have some kind of prenuptial contract that set aside the Salem property as non-marital property, then - since Idaho is a community property state - wouldn't LVD have been half owner in it, even if her interest had not been recorded on property records?
That is, didn't JP accept a quit claim deed on a property from a grantor (CD) who was not 100% owner by law, even if CD was the only living owner on the county's real estate records?