Craig (wouldn't give last name) stands against a brick wall in Hemlock alley, just off the corner of Geary and Larkin, on a Sunny afternoon. He comes in from Oakland on the BART to sell crack-cocaine to the addicts in the Tenderloin. Story: According to a survey done by San Francisco Human Services Agency, there are over 6,000 homeless on the streets of San Francisco. Although homelessness isn't a new phenomenon in the eyes of San Francisco residents by any stretch, the epidemic has shown no signs of slowing down in recent years. The corner of Geary and Larkin lies in the heart of the Tenderloin where the highest population of homeless live. Amidst hardcore drug abuse, violence, and poverty, homeless from all walks of life struggle to survive here everyday.