Honestly, I can’t tell you for sure. The lines diving psychopathy, sociopathy and other Cluster B personality disorders are very blurred to say the least. Even more so because Mark is still under the age of 18 which is the age when you can start properly diagnosing someone with mental diseases. So this will be a very loose diagnosis. There is a certified test called the
PCL-R (Psychopathy Checklist Revised) to help asses the presence of psychopathy in people. When filling this out using Mark’s personality and actions in the book as a guide he scored 34 which is high enough (over 30) to be considered a functioning psychopath. The test however does not tell us what type. The different types are a high functioning psychopath which is a psychopath
PCL-R (Psychopathy Checklist Revised) to help asses the presence of psychopathy in people. When filling this out using Mark’s personality and actions in the book as a guide he scored 34 which is high enough (over 30) to be considered a functioning psychopath. The test however does not tell us what type. The different types are a high functioning psychopath which is a psychopath