Complete the short story/flash fiction, that has the following first paragraph:
He glanced once more at the chalkboard and the equation that he had just finished writing with the short stubby piece of chalk that still rested between the fingers of his right hand. Turning around he faced the packed theater that had gone silent. Clearing his throat he began. “My name is Xavier Decoteau, professor of Physics and, as the University keeps telling me, Nobel Laureate with a specialty in experimental physics. This equation on the board is telling me that in the next seventy-two hours everyone in this room with the exception of myself and you”, he pointed to the person sitting in the third seat in from the aisle in the second row, “will be dead before the end of the week. Have a good day.”
Post a link to the story in the comments.