You are referenceing Frank Marshall Davis. This was Obama's "father-like" mentor in Hawaii. The guy was a communist and pedofile and that was the main reason he had to get off the mainland. Several references states taht he chose Hawaiss specifically for his desire for "little brown boys". Just Google Frank Marshall Davis and you will find all types of stuff about him on the web.
"In his biography of Barack Obama, David Mendell writes about Obama's life as a "secret smoker" and how he "went to great lengths to conceal the habit." But what about Obama's secret political life? It turns out that Obama's childhood mentor, Frank Marshall Davis, was a communist. In his books, Obama admits attending "socialist conferences" and coming into contact with Marxist literature. But he ridicules the charge of being a "hard-core academic Marxist," which was made by his colorful and outspoken 2004 U.S. Senate opponent, Republican Alan Keyes.
However, through Frank Marshall Davis, Obama had an admitted relationship with someone who was publicly identified as a member of the Communist Party USA (CPUSA). The record shows that Obama was in Hawaii from 1971-1979, where, at some point in time, he developed a close relationship, almost like a son, with Davis, listening to his "poetry" and getting advice on his career path. But Obama, in his book, Dreams From My Father, refers to him repeatedly as just "Frank."
The reason is apparent: Davis was a known communist who belonged to a party subservient to the Soviet Union. In fact, the 1951 report of the Commission on Subversive Activities to the Legislature of the Territory of Hawaii identified him as a CPUSA member. What's more, anti-communist congressional committees, including the House Un-American Activities Committee (HUAC), accused Davis of involvement in several communist-front organizations."