The Art of Negotiation

Walker worked as a police detective for 16 years. He then joined the hostage crisis and negotiation unit at Scotland Yard. In 2015, not long after his 40th birthday, Walker learned that his mother had killed herself. The loss triggered a period of soul searching. After divorcing his wife, he quit the police force to join a private consultancy. There are more people who have been to the International Space Station than there are working full-time as response consultants.