Purely as a scientific experiment, physicist Harold Levett decides to go back in time to kill his grandfather.
“It’s nothing personal,” I say. “It’s strictly a scientific question . . .

Variants

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  1. “The Grandfather Problem” by Andrew Weiner, in Asimov’s Science Fiction, August 1988.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Andrew Weiner