David Ernest, who guided The Lancaster News as publisher for a decade, died Friday in Columbia after a two-year battle with cancer, surrounded by his wife and daughters. He was 65. Ernest came to the paper as publisher in 1992 from Florida, where he was advertising manager at a sister newspaper, the daily Citrus County Chronicle. Susan Rowell, publisher of The Lancaster News, said it was a pleasure to work with Ernest during his 10 years at the paper.