David Freedman is a psychiatric epidemiologist whose research primarily focused on neurodevelopmental disorders and cognition. He works as an expert consultant in capital cases providing assistance to legal teams on recognition of mental health symptoms; diagnostic and cognitive functioning testing and evaluation, including evaluating the reliability and validity of scientific and psychometric assessment tools; preparation and presentation of scientific evidence; and more generally, guidance and supervision on the investigation of neurodevelopmental psychopathology and biopsychosocial, multi-generational social history. He has published numerous papers on prenatal and perinatal risks for psychotic disorders, cognitive functioning and behavior, forensic assessment and issues related to mental illness, indigent defense and death penalty litigation. David obtained his Ph.D, at Columbia University's Mailman School of Public Health in Epidemiology, having been awarded an NIMH Fellowship in Psychiatric Epidemiology; he worked as a Postdoctoral Scholar in the Departments of Psychiatry and Biobehavioral Sciences, at the Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles; and obtained an Sc.M. from the Harvard School of Public Health.