Another update...the Sheriff now says that it's believed that the number of tear gas canisters and flashbang grenades used is what caused the fire.
Also, the second person killed was not a process server, but may have been a locksmith there with the deputy to unlock the apartment. That's still not confirmed by the police who say they're still in the process of notifying the next of kin.
Reports are all over the place...it was a duplex, it was a four-plex, the guy was former military, (with one station saying someone came by claiming to be a former war buddy of the suspect and asking to be allowed to go try to talk him out) to no military service but was from a military family.
One thing that has stayed fairly constant is that the person who they believe did the shooting has a fairly extensive arsenal of weapons and a large cache of ammunition.
I'm kind of surprised that there hasn't been any explosions or sounds of rounds "cooking off" in the fire.
It looks like the fire department had been held back for their safety, and is still being limited to controlling damage to other structures and pouring water on this one from a distance. The fire chief said that it was "fully engulfed" and at last report, the structure was in the process of collapsing.
I feel for the folks who lived in the adjoining apartments who have lost all their belongings.