I think the element of surprise negates how far each of the doors was open. WE know they should have been been cautious, they were possibly just opening a door. MM, you seem to be zeroing on keys and doors. So...if not the son, if not an ex of Suzie's, who else would be given a key?
I'm only going on my own experience. No way in the world is any sane person going to open up a door at 3:30 AM to anyone except someone who they trusted. That list of suspects is very, very small. I don't buy the gas leak ruse either. But someone, probably most people, would open the door to a cop. And that has even been floated within the department itself. I wouldn't rule that out.
I wouldn't rule out a stalker, a very clever serial killer who knows or has befriended the women who would be trusted. Just don't know who that would be although some names have been floated. I find it very, very hard, that the so called Grand Jury Three, with their backgrounds could have gotten into the house.
Then there is the matter of the jealous girlfriend who might have persuaded her boyfriend to get him in but I'm really not enamored of that idea either.
So we have the matter of the unaccounted key. I want to stress that one of the actual police officers who was assigned this case, told me personally that Suzie had no key to the side door on her key chain. That is not hearsay. It has to be accounted for somehow.
The story goes that new locks were installed in the house not too long before the women went missing. Another story is that she had it done twice and another story is that Sherrill did not allow Suzie to have the side door key as she had been careless about locking the door. That source is solid. I still want to know where the key went to. It is unrealistic to believe that a locksmith would only make one key for the door. Perhaps the locksmith/handyman kept it for himself. That idea has been floated.
It has been suggested that the sliding door to Suzie's bedroom could have been lifted off its tracks to get inside. I'm dubious about that. I guess it is possible. The police have told us that exit was from the front door and that's all they have told us.
To show the difficulty in trying to understand this case see the following: This is an excerpt of a news story from 2012.
In 2012 NCMEC visited Springfield for a prep presentation.
NCMEC looked at the house and traveled to different places the girls were the evening of June 6th.
The April 2012 presentation in DC lasted nearly 3 full days in front of a 25-person panel of criminal experts.
"We went over physical evidence that was collected at the scene
We went over the timelines of the victims. We also discussed some of the people looked at as possible suspects
There are people that we have looked at and are completely ruled out.
There are people we have looked at for the last 20 years and are still not completely ruled out.
The profession has improved so much since 1992, especially in the area of science, so is there a piece of DNA evidence out there that hasn't been tested or was tested years ago, but the process is better now that may lead us in a good direction?
"I will tell you that we are constantly reviewing evidence that is found at the scene and we will, I think, have the opportunity to have some things retested." (Link not now available but accurate)
So three days of intensive reinvestigation by these outside agencies didn't seem to move the ball. I keep hearing a confession is needed to solve the crime.
Finally, I worked with one of the police officers who searched the river and banks around the James River. He didn't know anything and I asked him several times. I also worked with another LE official who had an inside into the investigation and said it was "unsolvable" because the crime scene was contaminated. I argued and argued to no avail.
It is so frustrating.
I want to know where the other supposed key went to. I want to know who would be trusted enough to be allowed in the house. In no particular order.
1) Someone who had befriended one or both of the women prior to their going missing and who could logically be allowed in the house.
2) A cop.
3) A serial killer who knew what he was doing and could get into the house somehow, someway. Such a person would have looked at this very closely. We don't know who that would be but have someone I have strongly considered as a possibility. The date, June 7, suggests such a possibility of something. I'm always dubious of coincidences.