Maître Labori is seen approaching the bridge of Rennes in company with Colonel Picquart and M. Gast, Mayor of Rennes. They notice that they are followed by another man to whom Colonel Picquart calls Labori's attention. They, however, consider his proximity of no importance, and continue to speak together. As soon as their backs are turned, the man draws a revolver and fires twice at Maître Labori, who is seen to fall to the ground. The culprit makes his escape, pursued by Colonel Picquart and M. Gast.
