All the nude photos were proven beyond a shadow of a doubt to be someone other than Stanley Ann, and the photographer had no connection to Frank Marshall Davis. It is a made up theory, probably made up to distract from his real background, and to make those who doubt the official story look like kooks. There are several in depth threads about this.
A most successful "smoke-and-mirror" job has used psychological "judo" to turn real concerns into massive confusion.
Prestidigitation political. Obama's (or whoever he is) provenances have become, like bodily functions in Victorian Britain, unmentionable at dinner ... or just about anywhere else.