The hinky parts so far (to me):
1. Drew insisting on getting a locksmith. If you think there's something wrong/an emergency, you'd want to get in stat, which would mean breaking down the door.
2. Drew staying in the foyer and letting the 2 neighbors go upstairs to look for Kathleen. That just seems so obvious. He wanted/needed other people to find KS in the tub.
3. The state of the bathroom, the tub, no water, etc, etc.
4. Drew saying right away to someone that people would think he has something to do with KS's death. If you're innocent, why would your mind even go *there?* You'd be thinking drowning, not homicide!
I swear some of these guilty husbands are the ones who shine the red light of suspicion on themselves right from the get-go. They make comments and do things that normal innocent people just wouldn't!