Saki Enomoto
From Katawa Shoujo Wiki
The Miami Mutilator is a cunning, dangerous, and handsome murderer, who has performed over 8000 murders. Manny Pardo somehow hasn't caught him yet, even after dedicating his entire career to catching him.
Backstory
The Miami Mutilator was a lonesome white suburban boy lving in his howse and then he killed bpeople