Please read the whole post of Fr Carota:
This, below, was very reassuring to read. I’ll bet Fr Walker had his brown scapular on!
Knowing Fr. Walker, I am deeply saddened by his death, and the way he had to die. But I also am consoled that very very likely he was in sanctifying grace after attending the retreat and the way he believe and lived his traditional Catholic faith. Fr. Terra, in the seriously wounded condition, gave Fr. Walker Extreme Unction. That was a very heroic deed of Fr. Terra.
May Father Walker rest in peace. Amen.