It’s Good Friday. And, yes, Theresa was found on Good Friday. SO if you’re confused it’s because in 1979 Good Friday fell on the 13th of April, one week from today.
To recap… Good Friday, 1979… AND it was bad luck Friday (the 13th).
And in case you ever wondered, yes, Manon Dube was also found on Good Friday (in 1978 Easter was in March).
Louise Camirand was not found on Good Friday, that was a mistake made by the National Post.