In heavy rain, the demonstrators marched from the community to the nightclub where Aubry lost his life five months ago. Who and whether anyone is responsible for the death remains unclear to this day.
What is known for now is that the late Jonathan Aubry had an altercation with a security agent in the nightclub on 23 December, when he fell. His head was so badly injured that he died on the spot.
Family and friends criticise the affair for dragging on too long. Since her husband's death, Jonathan Aubry's widow, Faïza Aubry-Bouraï, says that she no longer has a life and is irritated about the justice system's failure to clarify the matter.
"I don't think things are progressing at all. There is a lack of transparency. We have very little information about the investigation. I trust the judiciary, but I have a lot of doubts because there are few answers and there is little movement."
The nightclub's security agent was arrested in the first instance, but was released a few days later under conditions. When asked, the judiciary stated that the investigation is still ongoing.
After this incident, the municipality of Pétange withdrew the extension of the closing time to 6 am, says Mayor Jean-Marie Halsdorf.
After this incident, the municipality of Pétange withdrew the extension of the closing time to 6 am, says mayor Jean-Marie Halsdorf.
"After that, a few extensions were authorised until 3 am, but after another incident, we then dropped the late extended licensing hours altogether. We are now reintroducing extended licensing hours, on the condition that the club introduce a series of measures that were agreed upon in discussions with the police. When these are implemented, which should be in the next few weeks, the nightclub's licensing hours will be extended again, perhaps for a month or two. In that time, we will also do monitoring. We're on it."
The measures to be implemented are already familiar from other nightlife venues:
"Firstly, we might want to use cameras to see when people come in, and conduct body checks to see if they're not armed. Then also we need to make sure that people aren't served too much alcohol, because fights usually break out when people are drunk."
The municipality believes that, in general, the risk of incidents is lower when there are no late-night events. However, this does not always guarantee a quiet evening. Last weekend, a person in Pétange was shot in the foot and then injured in the head with a knife.
Here too, it is not known exactly what happened. According to the judiciary, investigations are still ongoing.
