I agree with this post completely.
I think the person who wanted JD out of the way is the one who went to the house that day.
I don't think this was a contract killing/hitman scenario.
If you hire someone to do your dirty work for you, you don't then drive yourself out to Hartford to dispose of evidence, if that is in fact what FD was doing there in Hartford. That totally defeats the purpose of contracting a hit.
The goal is to keep your hands completely clean.
Like Pontius Pilate.
Agree that the perpetrator may have had help in the aftermath, i.e., assistance with cleaning up the crime scene, help moving KB and/or removing evidence in the home, providing alibis, etc.
We've certainly seen that scenario play out here before.
If I see or hear the words "Landfill Search" in relation to this case, I'm going to vent a spleen.
JMO.