Juliana Faustino Bassetto, a vibrant 27-year-old and dedicated teacher at a private school in São Paulo's Cidade Líder neighborhood, has died after swimming at the C4 GYM pool, where she had taken swimming lessons with her husband, Vinicius de Oliveira, for nearly a year. The incident has shocked the local community, with many recalling her passion for teaching and her recent marriage in December 2024.

According to police reports, the main suspicion surrounding her sudden death is related to possible poisoning from inhaling a harmful chemical mixture used for pool cleaning. Investigators discovered a bucket containing approximately 20 liters of this mixture at the gym, leading to concerns about the safety protocols followed at the facility. The management of C4 GYM has expressed their deep remorse over the incident, stating that they provided immediate assistance to those present at the gym when the tragedy occurred.

As authorities continue their investigation, family members have spoken to local news outlets, shedding light on Juliana's recent life milestones, including her recent marriage and their new apartment purchase. This incident raises broader questions about gym safety protocols and the handling of chemicals used in recreational facilities, prompting potential calls for stricter regulations in the industry to prevent future tragedies such as this one.