Jaqueline Guerreiro is a Brazilian YouTuber, entrepreneur, and content creator best known for her true crime series Quinta Misteriosa (“Mysterious Thursday”). Born in Ponta Grossa, Paraná, she studied Journalism at the State University of Ponta Grossa, where she produced a documentary on obstetric violence as her graduation project. Starting her career with lifestyle and fashion content, she later shifted to true crime storytelling, building a large following on YouTube and TikTok. In addition to her media work, she is the founder of Thursday, a fashion brand inspired by her signature series. Although Ju Cassini's grim fate at the hands of ISG, Jaque maintains a close and friendly bond with them—some of them even intimate (Tiago Rocha).