You're jumping through a lot of hoops to portray Joss as aggressive so you can justify his murder. Let's start here:

1.) All three dogs were found

Nothing in the article confirms they only had three dogs. On top of that, other sources you posted said they only found 2 dogs. Including this video from earlier today that is even more recent than the article that alleges they lost their three which is from Janurary. We also have no idea if there were more than 3 dogs, because the term they found all three dogs isn't anywhere in your source. Simply that they found 3, and that number isn't even likely correct. (Edit: On re-read, Sources 2, 3 and 4 all cite 2 dogs being lost in the fire. Did you even read your own sources and confirmed you had the correct number before you started spouting off?)

2.) 3.) What caused the fire?

This is a weird, semantic, pedantic, hill to die on. The police themselves say they don't know what caused the fire. If it was an accidental fire from a propane heater, grill, etc, it would be incredibly easy to determine if that was the origin point of the fire. The fact they couldn't determine the cause is either a sign to their utter incompetence, or that there was foul play. Even your own source for 4 had this quote:

I have classified this fire to be undetermined in nature at this time but cannot rule out human involvement intentional or unintentional

They already knew there was a heat source, but they can't confirm the fire started from there? That's extremely suspect. Meanwhile getting away with arson is fairly easy due to the nature of fire. Given these circumstances, you needs a lot more evidence to prove Jonathan Joss was the person responsible for his house fire. On top of that, Joss' house wasn't insured. So it's not like he or his husband caused it for the insurance payout.

4.) 5.) Previous incidents.

He was loud and brazen in his neighborhood, likely because of the abuse he received. However there is zero evidence that Jonathan ever aimed his crossbow at his neighbors house. The only evidence for this claim from a few anonymous sources, and the fact they found a crossbow on his property during a search. The pitchfork wielding was because he found his dog dead. Again, nothing in your first text proves whatsoever that Jonathan didn't find his third dog. Or even that Jonathan only had 3 dogs. Considering even the NBC source says 2 dogs found, that's 2 sources to your 1 saying otherwise. So it seems like there were only 2 dogs found.

6.) SAFFE investigation

First off, I'd like to see any evidence to the claim that Johnathan would shoot guns pr fire his crossbow from his property. I haven't seen a single substantiated claim that has ever happened. Second, the crossbow incident can't be substantiated whatsoever either. Jonathan had a crossbow, but there's zero evidence he ever brought it to his neighbors house. Plus it's weird that you bring that up like it happened repeatedly. Even if it did happen, which again there's zero evidence to it having happened, it only happened once.

And literally none of your sources ever once ask or answer where all of this animosity stemmed from. It very much seems like it could be a hate-crime, and its weird that you're in multiple threads railing against Joss. You have a weird vendetta it seems.