A perfect house for an attack would be a house that is single story, gives an easy opportunity for the killer to escape if something goes wrong, has multiple escape routes, preferably near canals or creeks or main roads that will allow the killer to easily blend after an attack. This house is the opposite of that. For one, you have only two escape routes, one of which is filled with cameras and I would imagine the route through the back bushes and Walenta Dr is also camera friendly given the amount of houses there. You need to know where specifically you are going not to get caught. It'd be pretty weird being a car or person passing through there at 4:00 in the morning and you'd be the first suspect if you're spotted. And in a small town such as Moscow it wouldn't be that difficult to find you. Also, I would imagine that parking at Walenta Dr would raise quite a few eyebrows from people passing through there and you'd have to be incredibly lucky not to have someone notice or pass through there while you're doing your crime.
The parking behind the house is also an awfully risky spot, albeit it does have a nice vantage point of the house. The reason for that is that cars come and go from there constantly. It is situated next to the apartments in an overall a lively area and active college party scene. You can be easily spotted by someone coming with his headlights on. Then you'd have to assume that a person simply parking his car in Walenta Dr would stand out to others and he'd have to be enormously lucky not have someone pass through there and notice. If he instead decides to pass through Taylor Ave up to King Road then that's even worse since it's even easier to spot you from there. You're going to be walking/driving past a minefield of cameras up to the house.
The house itself is problematic - multiple stories, built like a maze, people living on all three floors, multiple doors and bedrooms on every floor. You kinda have to know what you're doing and where you are because you'd be putting yourself in huge danger at any moment you're in that house. And finally - if something goes on, whether during the attack or someone hears something, the killer is virtually screwed. There's no escape from that area.
I disagree. How many neighbors are in that area? Hundreds? Police do not have time to comb through them, at least not in any deep capacity. It would allow the killer to know the victims, possibly even be acquainted with them, but not be under any severe scrutiny from the police. It also allows him the opportunity to know the area itself, have intimate knowledge of the victim's movements and to have a very easy escape route back to his home. And unless you have footage that would put the perp at the crime scene around that hour, what do you have on him? And even then, so what? He lives in that area. It's the perfect excuse.
Well, they want the car because they don't know who the occupants are, that's the problem. For all we know, they might have already identified the car without even realizing it. Unless you have something to distinguish that specific Elantra from others or the suspect's face or general build, it would be impossible to actually tell whether that is the killer's car or some random civilian. At this point the Elantra itself as evidence might be useless. It might be helpful to narrow down the suspect list if they are 100% convinced it is the killer,'s but the car as evidence of itself is pointless.
I think the closest would be the Setagaya family murders and the Keddie Murders. Unfortunately, the former hasn't been solved, but imo I'm of the belief that it was one of these skateboarders Setagaya's family had beef with. With the Keddie Murders I think it is pretty obvious it was the neighbor and should have been solved if not for the absolute shocking state of police incompetency and possibly corruption.