The author, Michael Jacobs, was employed for 29 years as a deputy district attorney by the Orange County District Attorney's Office in California. He spent thirteen years in the Homicide Unit which he supervised for three years. In 1996, his efforts led to the formation of the unsolved homicide project TRACKRS (Task Force Review Aimed at Catching Killers, Rapists, and Serial Offenders). A few years later, he initiated the Orange County Innocence Project by which state prison inmates could petition the District Attorney's Office claiming innocence based upon DNA or other newly discovered evidence. Having retired from the DIstrict Attorney's Office in 2006, Mr. Jacobs is currently engaged in private civil practice and working on his next book about our criminal justice system.