Mimault became unnerved because of the decision, and after an incident where he shot at and wounded two students of the École Polytechnique (charges for which were dropped), he demanded a special act to prolong the duration of his patents, 100,000 Francs, and election to the Légion d'honneur. A commission directed by Jules Raynaud (head of telegraph research) rejected his demands. Upon hearing the decision, Mimault shot and killed Raynaud, and was sentenced to 10 years forced labour and 20 years of exile.