I have been morally certain of his identity for some time ever since the night of Mrs. Vandemeyer's mysterious death."
Before Mrs. Vandermeyer passed away there was no way for me to identify him.
mnli hypothesis: Before Mrs. Vandermeyer passed away there was no way for me to identify him. premise: I have been morally certain of his identity for some time ever since the night of Mrs. Vandemeyer's mysterious death."