https://www.cnet.com/news/jake-gyllenhaal-confirms-hes-playing-spider-man-villain/

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.