Who is Jack Parker from Becoming a Doctor: A Journey of Initiation in Medical School and what is their importance?

Jack Parker was Director of Trauma Surgery and the individual who criticized Konner's medical bag. He began six-thirty in the morning lectures with the imperative to remember their "ABC's." Because they were working in trauma as the "first-hour physicians" on frontline treatment of medical emergency, they would have little time to think about what to do next. Consequently Parker's "ABC's" referred to the basics, airway, breathing and circulation. Parker refused Konner's question about c-spine injury with CPR, which reminded Konner of his own KMS (Keep Mouth Shut).