Who: Frederick A. Dosier
What: The 32-year-old San Francisco man who police say is the suspect in a string of violent sexual assaults last year in the Mission district is expected to make his first court
New details: An SFUSD spokeswoman said Monday that Dosier was a part-time, “as-needed” student nutrition services worker for the school district and passed a criminal background check when he was hired. He also was a trash sorter for Green Streets. The attacks for which Dosier is charged occurred in June, November and December. Each incident happened along 24th Street.