This case study demonstrates the procedures and the complementary function and contribution of the Rorschach within a multi-method forensic mental health evaluation. This particular case addressed the state of mind of a perpetrator and related traumatic reactions and the possibility of Posttraumatic Stress Disorder (PTSD) associated with violent attacks involving rape. The verbatim Rorschach record contained repeated and troubled images of splitting and ripping, and of transitions from cooperative and pleasing to darkness and evil representations, that likely reflected the individual’s distressed perception of his own dissociation. A previous review of the research of the Rorschach and post-traumatic reactions (Viglione et al., 2012) provided the main structure for applying the Rorschach in this case. The resultant Rorschach interpretations were consistent with the outcome of self-report assessments including measures of mental status and trauma reactions, as well as with additional familial declarations and forensic and clinical interviews. The full battery of tests provided the image of a criminal suffering from chronic, complex PTSD with dissociative symptoms reflecting opposing affiliative and aggressive traits; his fluctuating aggressive behavior was consistent with features of antisocial personality disorder.