Complex sentence: She was in private practice and "worked as a public defender for the city of Los Angeles before becoming a prosecutor" in 1981 for Los Angeles County, California, where she worked as a deputy district attorney, and was mentored by prosecutor Harvey Giss.
Split into simpler sentences: She was in private practice and "worked as a public defender for the city of Los Angeles before becoming a prosecutor" in 1981. She worked as a deputy district attorney for Los Angeles County, California, and was mentored by prosecutor Harvey Giss.