Dr. Resnick is a Professor of Psychiatry at Case Western Reserve University School of Medicine in Cleveland, Ohio. He completed his undergraduate and medical training at Case Western Reserve University. His psychiatry residency was at University Hospitals of Cleveland. Dr. Resnick was the Director of the Court Psychiatric Clinic for Cleveland, Ohio for 42 years.

Dr. Resnick served as a consultant in many high profile cases, including those of Jeffrey Dahmer, Susan Smith, Timothy McVeigh, Andrea Yates, Scott Peterson, Casey Anthony, Nikolas Cruz, Theodore Kaczynski, the Unabomber, and James Holmes, the Aurora, Colorado Batman movie shooter.

Dr. Resnick received the Isaac Ray Award for outstanding contributions to forensic psychiatry and psychiatric aspects of jurisprudence from the American Psychiatric Association. He has taught more than 140 courses at annual meetings of the American Psychiatric Association. He was the director of the Forensic Psychiatry Review Course for the American Academy of Psychiatry and the Law for 31 years.

Dr. Resnick has served as a distinguished visiting professor at 14 universities and has been on the editorial board of six major journals. He is a past president of the American Academy of Psychiatry and the Law. He has published over 215 articles and book chapters. He has lectured in 49 states and 25 countries.