Mr. Green may have eaten a human and didn't know it. Oh well, an ex-friend, decades ago, went through a similar boat experience. Someone die and they had to carve him up. He said the wife was crying as she eat him. He was laughing in hindsight. He's a little younger than Mr. Green but he experience it older. Or maybe people would like to hear that he made it all up and thus fake and such.
Most people who eat meat don't really think much that some animal die for it. Bleeding a fish that he just caught and filleting it minutes later, is an experience. He keep evaluating: Does he really need it? Chicken and seafood is enough for Mr. Green.
Human meat?! Where did you go on vacation? That sounds insane.