Eventually, without his family's help, George found a place to stay. At a library, he came upon the name of a shelter for teens run by Larkin Street Youth Services. He also reenrolled in school.
He kept trying to reach his aunt. One day last spring, days before his high school graduation, she answered the phone.
It was a halting conversation, full of long silences on her end. He told her about his upcoming graduation ceremony. He was hoping, he said, that she would tell him she wanted to come.
But George didn't celebrate his graduation alone. His friends at the shelter filled the void, throwing a surprise party in his honor.
Today, George is a freshman at a community college in San Francisco. He continues living in a shelter but has reconnected with some of his family -- his grandparents. He spent Christmas with them.
It was a time, he said, of "a lot of shopping, love, arms around me."
Not all the teens we followed have been as fortunate.