Which B.F.D.I. Characters would figure out that Norman from the Norman horror comic book series by stan siles is a serial killer?

Which BFDI characters would be able to figure out that Norman from the Horror Comedy series called Norman by Stan Silas, which is made up of the books Norman Vol. 1 (originally published in 2011 as La Vie de Norman)., Norman Vol. 2: Teacher's Pet (2015)., Norman Vol. 3: The Vengeance of Grace., and Norman: The First Slash (2017) which are the English translation by Titan Comics and the the original French versions which are Tome 1, Tome 2: La maîtresse (Teacher's Pet), Tome 3: La vengeance de Garance (The Vengeance of Grace), Tome 4: Histoires d'effrayance, and Tome 5: La malédiction and figure out that he is a human child who is a serial killer if he were to join BFDI?