No one disputes who killed San Jose resident Donna Fife -- not even the teenager who slammed his beige Honda Civic into her so hard her neighbors said they heard a sickening thud. What jurors will have to decide is whether the young man, Richard Delgado, killed the popular matriarch in 2009 intentionally. Delgado, now a short, skinny 23-year-old with a shaved head and thin mustache, is charged with one count of murder. As the first day of Delgado's long-awaited trial got under way Monday afternoon, Fife's still grief-stricken husband of 25 years, Mark, clutched his sister-in-law's hand, and about...