The film is made decently enough, nothing to complain.
However, it features a series of misleading statements (e.g. The stairs story) and omissions (Cooper wasn't the gentleman he's always said to be, and many other things are simply untrue).
Most, if not all, of these suspects have conclusively been ruled out long ago.
Watch it for entertainment but don't take it for gospel. If you want to research the case you are better off on YouTube (I hate to recommend that), and forums dedicated to the case.
Like a lot of movies, they just took whatever they could to tell "a story", not more, not less.
However, it features a series of misleading statements (e.g. The stairs story) and omissions (Cooper wasn't the gentleman he's always said to be, and many other things are simply untrue).
Most, if not all, of these suspects have conclusively been ruled out long ago.
Watch it for entertainment but don't take it for gospel. If you want to research the case you are better off on YouTube (I hate to recommend that), and forums dedicated to the case.
Like a lot of movies, they just took whatever they could to tell "a story", not more, not less.