The only high-school friend I have seen mentioned is his pot smoking buddy.
The only contact at Occidental was his drug-dealing roommate.
The only contact at Columbia was his drug using roommate. I believe the drug-using Columbia roommate was related to the drug-dealing Occidental roommate.
Then somehow, after graduating, he just happened to buy a Chicago paper (even though he had no connections to Chicago), and the paper just happened to have a classified ad for a community organizer position, and Obama just happened to see the ad, called and got the job.
I am willing to bet Obama spent his time in New York outside of the Columbia student environment, and more likely in the New York radical leftist activist circle. William Ayers was in New York at the time, and Ayers had a lot of connections to Chicago.
I believe Ayers is the missing link.
His uncle lived in Chicago.