https://www.cnet.com/news/jake-gyllenhaal-seems-to-confirm-spider-man-role-as-villain-mysterio-on-instagram/

In the comic, Mysterio tries to convince Spidey he caused a man's death, The Hollywood Reporter reports, noting that it's unclear if this plot will carry over into the film.

In the comics, Mysterio is the alternate name of Quentin Beck, a movie stuntman and special-effects wizard who uses his skills in creating illusions to commit crimes.