Understand that Frank Marshall Davis was from Chicago...and a part of the very same radical organization that Barack Obama associated himself with when he went to Chicago himself.
You might say Obama "reported" to the Chicago organization upon his arrival.
For example, all of the other people listed on the panel for "The Love Song To Saul Alinsky" poster (see Breitbart) would've been associates of Frank Marshall Davis before he left Chicago (to avoid prosecution).
Frank Marshall Davis is also thought to be the model for Obama's poem, "Pop".
Whatever his actual role, Frank Marshall Davis is emerging as a key player in the continuing saga of Barack Obama.
FMD was a Communist Party member and the FBI had a file on him.