Welcome to the wonderful world of PTSD. One minute your walking down the street with someone you have known your whole life ( possibly a relative) having a conversation and the next thing you hear is “get down man get down their shooting at us “ . One person took off running in fear of his life and called the police while the other fled the scene only to be picked up miles away, in all probability realizing there were only two people left alive and it was his word against the other and called the police to turn himself in. My VA counselor told me that over 80% of those he had counseled returning from combat environments were post traumatic. It appears this guy snapped , and now Dupree has to live the rest of his life having witnessed three cold blooded murders only a few feet away one of which was his life long best friend.