And following on with your line - what does the 10 day gap before getting a search warrant suggest about their evidence? Obviously, there was nothing initially. Or there was something initially that they were able to get a SW but found nothing? I keep editing my post. Wasn't there an initial search warrant followed by a 10 gap and another search?
Suzanne disappeared May 10; search warrant was May 20 (we have no way of knowing to what degree CoVid slowed that down), next search warrant was mid-July).
Why would the delay in the search warrant make you think they "had nothing"?
Let's imagine a scenario in which LE is invited inside the house by a household member to do an initial welfare check, notices certain things, perhaps even has probable cause to...look in the garage, check out each room of the house, and certainly can make note of things. 2 half-full wine glasses still in the kitchen? Might be nice to get DNA off them, right? That would take a warrant unless BM consents (which he might, whether guilty or innocent - he certainly would want to appear innocent).
Or, let's say LE sees remnants of breakfast (but no other meal) in the kitchen. They note that, start thinking about timeline. 3 days later, they decide they need a warrant (and it takes a week - that's not surprising to me).
Or, when doing a basic check of the house and yard, LE notices that Suzanne's biking shoes are neatly stored near the bike area in the garage. They ask household members how many pairs she had and are told "just one."
Even worse, they go into the home (with permission from household members) and see that the oven is on and dinner is still in it. Hmm. That speaks to time of day for the crime, right? Narrows down when and how it was done?
Or there's water in the bathtub. But no Suzanne (who draws a bath right before a bike ride?) Or evidence of recent water in the bathtub, but no towels used. I could go on and on.
All of these things would be noted on an early welfare check (which should have been permitted by household members of a missing woman, especially as none of them were anywhere near the residence and they're trying to get a missing person found).
Her sunglasses are still where she usually keeps them. (Be interesting if one "spare pair" is the found personal item - even more interesting if that item is one of the ones a sharp-eyed cop noticed on Day 1, inside the house or on the visor of her car).
I bet others can think of any more relevant examples, but I do believe BM acted as an innocent person would on days 1-3 or longer, was barred from searching, said "too soon," went into video production mode at friend's house - but that initially, he did indeed allow police in the house - and I wouldn't be surprised at all if he accompanied them all around the property and the house when he returned home. I'm not confident of DM"s "he never went in the house at all" insinuation.
So did he have a suitcase full of clothes in his truck, for his quick trip to Denver? I bet not. Did other family members go in and get his stuff, while he was forced to wait outside by LE? On Day 1?
If so...wow, they had to have seen or heard something really suspicious in that case.
Personally, I think something was said to LE by any one of a number of concerned family members and that made them more sharp-eyed during the phase of welfare check/establishment of a missing person case.
My daughters know my unlock code to my devices. They'd give LE permission to check them in a heartbeat (as would my DH, but let's say he's in Denver and unavailable). My devices would show at what time my apple watch went out of wireless range, more or less. Suzanne may have had a fancier kind that gave more info. Even spotty cellular service will transmit the small packets that allow the watch to give info to the cloud (which then shows up on the phone back home).
If Suzanne left home without her watch, phone, sunglasses, biking shoes...and there's no sign of struggle in the house...pretty sure police would be quite suspicious. Anyway, I do believe LE was able to look around the house (but not seize banking records or devices or use luminol or any of that) from May 10-May 19, more or less.