Definition of Inter-Communion is giving that which is holy to dogs
This is what follows when the Priests engage in Inter-Communion: they trample them under their feet, and turning upon you, they tear you.
"Give not that which is holy to dogs; neither cast ye your pearls before swine, lest perhaps they trample them under their feet, and turning upon you, they tear you." Mt.7
The three priests were murdered by those non-Catholic criminals who received communion at the hand of the Priest.
The Church responds:
The Catholic Church of the Philippines has condemned the killing of a priest in the northern province of Nueva Ecija on Sunday, less than a week after another priest was hurt in a shootout in Laguna province. Source
Amoris Laetitia is responsible for the deaths as well