Laurent-Franck Liénard

Laurent-Franck Liénard is not mentioned in either of the provided news articles. Therefore, it is impossible to provide any information about him, his background, why he might be newsworthy, recent events related to him, or his current relevance based solely on the given text. The articles focus on the conviction of Gilles Guilbert, a former police officer, for the murder of Olivio Gomes, and a march against police impunity organized by families of victims, including Nahel Merzouk. These events highlight concerns about police violence and accountability in France.