In addition to "Trial by Ambush", California native Marcia Clark is the author of the legal thrillers "Final Judgment", "Snap Judgment", "Moral Defense", and "Blood Defense", all part of the Samantha Brinkman series. A practicing criminal lawyer since 1979, Clark joined the Los Angeles County District Attorney’s office in 1981, where she served as prosecutor for the trials of Robert John Bardo, convicted of killing actress Rebecca Schaeffer, and, most notably, O. J. Simpson. The bestselling "Without a Doubt", which she cowrote, chronicles her work on the Simpson trial. Clark has been a frequent commentator on a variety of shows and networks, including Today, Good Morning America, The Oprah Winfrey Show, CNN, and MSNBC, as well as a legal correspondent for Entertainment Tonight.