One of the many reasons we think so is that he embodies every symptom on this list of signs that somebody may be suffering from narcissistic personality disorder (seriously, click on the link and judge for yourself).
Based in Rome, Dr Dimaggio is the co-founder of the Centre for Metacognitive InterpersonalTherapy and has published extensively on narcissistic, borderline, and avoidant personality disorders ... But what really is narcissistic personality disorder?.