It mentions in this article about how Chris seems to not have fear about about eventually being killed after becoming a government witness. At the end of the HBO Richard Kuklinski (The Ice Man) documentary, Richard asks the psychiatrist his opinion about himself. The psych. mentioned that there are individuals that are naturally born fearless. In Kuklinski's case, being fearlesss mixed with not having a conscience and an abusive childhood led to him being a remorseles killer. He noted that people that are born without the natural inclination to be afraid are risk takers and may become sky divers or race car drivers. Chris appears to be naturally fearless which has been an advantage to him in his lifetime. If he had the ability to experience fear like most people, it would be impossible for him to live a life under his circumstances so publicly. Just my opinion.