Interesting... I thought I remembered hearing that the way he was caught was his neighbors smelling the horrid smell of dead bodies dissolving in acid, and the cops were called.
Also I'm pretty sure even if your explanation is the right one, I doubt he had a hole in his head... Yeah Dahmer did that to his victims but that caused his victims to die pretty quickly.
I have definitely heard a specific story of a couple women being kept in some guy's basement for a decade or so as sex slaves, and one managed to escape, and was running around naked looking for help.