Then all investigations are victim blaming, as statistically it is your family and friends that are most likely to commit a crime against you, and that's where LE and media always look first.
The last people seen with the missing person are the daughter and son in law.. The investigators are obviously looking at that and since they haven't publicly excluded them speculation will run rampant. For those innocent it sucks, I get it.That's "web sleuthing". It is what it is.
What further complicates this case is we really don't know what happened. If there was an actual abduction, if there was another initial crime, if the ransom angle is an unrelated opportunistic scam. It just is still in essence a missing person. The investigation has shed no definitive light on these issues yet, and have no obligation to the public. Again, it is what it is.