Overview

• Robert Card, the Lewiston shooter, suffered a traumatic brain injury from thousands of low-level blasts during grenade training, which likely contributed to his behavioral changes.
• The U.S. Army is set to launch a blast overpressure safety campaign and update guidance on mitigating risks from blast overpressure.
• Researchers highlight the need for more investigation into the risks of blast exposure and its potential to cause significant behavioral and cognitive changes.
• Army reservists testified about their efforts to manage Card's mental health crisis, but faced challenges in restricting his access to firearms.
• The findings of Card's post-mortem study, revealing traumatic brain injuries, prompt calls for more research and support for military service members with similar injuries.