Johnny Cash's dark California days

A new biography by Robert Hilburn peers deeply into Johnny's downward spiral, and ultimate redemptionJohnny Cash's life in the 1960s is mostly remembered as a time of glorious achievement — from the landmark prison albums at Folsom and San Quentin to the launch of the ABC-TV series featuring such guests as Bob Dylan and the Doors that led to his becoming a giant figure in popular culture, a symbol to millions, no less, of the best of American social values.