I returned to the fire on MLK today and also did some research.
The building that burned was a two-story commercial building at the rear of 4416-22 Martin Luther King. I write "rear" because the building that burned down was not attached to the storefront building that faces Martin Luther King -- good news for the building, I suppose.
The rear building was reduced to a pile of rubble and only a few sections of the outer brick walls stand, none higher than eight feet.
Saint Gabriel Ethiopian Orthodox Tewahdo Church owns the buildings.