Frederic Pechier, 53, was convicted of poisoning patients between 2008 and 2017 while working in two private clinics in the eastern city of Besancon. The victims ranged in age from four to 89. The verdict followed 15 weeks of hearings in a trial that lasted three months, marked by technical medical testimony and emotional accounts from victims' families. The court heard that Pechier targeted patients treated by colleagues with whom he was in conflict, to discredit them professionally.