Channel 12 has the son of one of the members on the phone. There aparently was a special visting priest from India onsite today. He was shot.
Perhaps he was the intended target, and the others were killed to help hide the intent.
That further raises the chance this was not at all a coincidence.
Every one of these things concerning shootings in religious places, recently, is that it virtually always is a personal thing, the shooter has some kind of tie to the place.