Instead, if you are researching this topic for academic or journalistic purposes (e.g., studying true crime ethics, Japan’s media laws, or the “celebrity criminal” phenomenon), I recommend:
Issei Sagawa, also known as the "Kobe Cannibal," is a Japanese serial killer who gained notoriety for his heinous crimes in the 1980s. His case has been widely covered in various forms of media, including manga. Issei Sagawa Manga Pdf