I just couldn't give this book 5 stars. I enjoyed it immensely but I feel that the changed present was a big cop out. This is a time travel novel about a man who goes back in time to stop the assassination of JFK. In typical Stephen King fashion there are definitely times where you feel the hairs on the back of your neck standing up. The story was entertaining and obviously well researched. I just didn't think the ending was well thought out.