The Sûreté du Québec (SQ) established a mobile command post Thursday at a roadside stop in Ulverton, where a man's body was found on March 19. The rest area is located along Highway 55 about twenty kilometers southeast of Drummondville. The police are hoping people will come forward to help solve the murder of Jean-François Henri, a 41-year-old resident of Magog. Henri was well-known in police circles. The SQ command post will be on site until May 15. Any information may also be transmitted confidentially to the Sûreté du Québec Criminal Information Center at 1-800-659-4264.