OCPD, Im reading up on it now that you mentioned it. This does sound more like JJD.
https://en.m.wikipedia.org/wiki/Obsessive–compulsive_personality_disorder
While Im not a psychologist and I didnt stay at a Holiday in XPress last night, this certainly sounds like it could be our guy.
Obsessivecompulsive personality disorder (OCPD) is a personality disorder characterized by a general pattern of concern with orderliness, perfectionism, excessive attention to details, mental and interpersonal control, and a need for control over one's environment, at the expense of flexibility, openness to experience, and efficiency.
Interesting that people with this could show alcoholism, workaholism and miserliness. Didnt JJD drink at many of the crime scenes, too? And the miserliness could show as his compulsion to eat while at the scenes, too. IMO
Interesting!!!
ETA: More from the link:
For people with this disorder, rigidity could place strain on interpersonal relationships, with occasional frustration turning into anger and even varying degrees of violence.
This is known as disinhibition.[9]
People with OCPD often tend to general pessimism and/or underlying form(s) of depression.[10][11][12] This can at times become so serious that suicide is a risk.[13]
Indeed, one study suggests that personality disorders are a substrate to psychiatric morbidity. They may cause more problems in functioning than a major depressive episode.[14]
