WASHINGTON, United States (AFP) — Authorities in Southern California have identified the gunman who killed 12 people in a crowded bar as 28-year-old Ian David Long, a former Marine who may have been suffering from PTSD. Here is a look at Post-Traumatic Stress Disorder and the impact it has on veterans. – How big a problem? – Millions of veterans are dealing with PTSD, a signature wound of any war. Symptoms can range from […]