1. Vice Chair for Community and Hospital-based Services, University of California Firearm Violence Research Center, Department of Psychiatry and Behavioral Sciences, Department of Emergency Medicine, University of California, Davis, CA, USA
2. Resolve Crisis Services of UPMC Western Psychiatric Hospital, Psychiatrist, UPMC Systemwide Threat Assessment and Response Team, Associate Professor of Psychiatry and Adjunct Professor of Law, University of Pittsburgh, Pittsburgh, PA, USA