Photos have surfaced showing Jacques and Jessica Moretti, owners of the Swiss nightclub Le Constellation, personally involved in renovating the venue before its opening in 2015. The club was the site of a devastating fire on New Year's Eve that killed at least 40 people and injured over 100, many of them young revellers. Investigators are focusing on the foam acoustic insulation installed during the renovation, which is believed to have ignited after a sparkler was used inside the club, rapidly spreading the blaze. The Morettis, who have built a reputation in the local hospitality industry, may face manslaughter charges if safety lapses are found, and are cooperating with authorities as the investigation continues. The tragedy has left families searching for missing loved ones, with identification of victims still ongoing and questions being raised about the club's safety measures and emergency exits.