Ben Campofreda turned from prescribed oxycodone to heroin and then fentanyl to treat chronic back pain. Unlike more than 500 people who have died from accidental overdoses in San Francisco this year, he fought his way to sobriety. Columnist and Total SF co-host Heather Knight talks to Cecilia Lei about his remarkable story, and we hear from Ben himself, who says the city has to do more for people trying to navigate its system of aid. | Unlimited Chronicle access: sfchronicle.com/pod

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