A Mauricie man suspected of committing serious sexual crimes against minors was arrested on Tuesday in Longueuil, Que. and was kept in custody after his court appearance the next day. Investigators from the Quebec provincial police s Integrated Pimping Unit say David Pellerin, a 39-year-old man from Saint-Léon-le-Grand, a small town north of Louiseville, appeared in court Wednesday by videoconference at the Trois-Rivières courthouse.