Well,
There's a bike down a steep embankment with no signs of crash, no disturbance in the vegetation, no blood, locked brake, and no rider.
A husband who's been out working over 12 hours, on a non-emergency, a Sunday, Mothers Day, left at 5 in the morning. That's quite some distancing (miles and hours) from this non-crashed bike with the missing wife, on a day of celebration where the mother central to this family is just abandoned.
Then you find out the daughters couldn't reach her hours ago yet he didn't come back, other people are running around looking for her, other people are phoning 911, daughters haven't spoken to her at all on Mothers Day and the husband is the only one to last see her.
A ride that is out of her normal habits, her backpack in her car - if they found it that fast, it seems the daughter's bf had the opportunity to see it because he knew she usually loaded the bike in the car.
Then to put the cherry on the cake the husband is already processing and willing to help you with explanations for her missing body - cats, and people he doesn't trust.
Hmm. Even if I'm not thinking murder yet I'm giving all this the side eye.