John Zulli is a leading authority on workplace violence prevention and crisis preparedness. A former Park Ranger and State of California Certified Defensive Tactics Instructor, Dr. Zulli developed his training in response to the Columbine High School shooting. His programs now serve corporations, universities, and federal agencies, including the Departments of Treasury and Homeland Security. John is a frequent speaker on leadership, communication, and performance under pressure, with clients that include Microsoft, SpaceX, Capital One, and Notre Dame University