Hospitalization Victim Support Death Helicopter Transport Injury Treatment Critical Condition Injuries Reanimation Hospital Treatment Injury Psychological Support Reanimation Attempts Injury Management Air Ambulance Patient Outcomes Helicopter Rescue Reanimation Techniques Gunshot Wounds Patient Transport University of Chicago Medical Center Post-Incident Care Critical Care Rehabilitation Patient Outcome Teen Health Pediatric Trauma Emergency Room Child Health Intensive Care Burn Treatment Autopsy Psychosocial Support Death Notification Injury Severity Head Injuries