Investigations into the Xavier Dupont de Ligonnès case suggest his late friend Emmanuel Teneur may have withheld information from police, including receiving letters after the alleged murder date, according to Femme Actuelle . While close friend Bruno de Stabenrath recently reiterated his belief that Dupont de Ligonnès is alive, the case remains an active international investigation with ongoing theories regarding his whereabouts. Read more in reports from Femme Actuelle .