Mailyss, 18, was stabbed to death on Valentine's Day evening in Essonne. A friend of Mailyss was allegedly threatened with death on social networks for having helped the police find the victim's trace.

A 16-year-old high school student filed a complaint for death threats. Police are investigating to try to identify the TikTok user, and verify the veracity of the comments made during a live broadcast on the video-sharing social network. In the meantime, the girl now benefits from police protection, through regular patrols.