Don't be mealy-mouthed about mortality. People die. When they do, just say so.
At the death of Elizabeth II, some reports said that she had "passed" or "passed away." She died.
Much as your squeamish discomfort with brute facts might tempt you to euphemize, pray don't.
People die; they do not pass, pass away, pass over, expire, depart, succumb, enter eternal rest, go to be with Jesus/the Lord, go west, cross the bar, buy the farm, pay a debt to nature, rest from their labors, wander the Elysian Fields, breathe their last, answer the final summons, go to meet their Maker, yield up the ghost, ring down the curtain, cash in their chips, shuffle off this mortal coil, join the choir invisible, or climb the golden staircase.
