Marcia Clark is a former Los Angeles deputy district attorney who was the lead prosecutor in the O.J. Simpson murder case. She wrote a bestselling nonfiction book about the trial, Without a Doubt and is a frequent media commentator and columnist on legal issues. Her novel Guilty By Association was published in April 2011 and its sequel GUILT BY DEGREES will be published in 2012. She lives in Los Angeles.

The unrest in Oakland over the verdict against a cop who shot an unarmed civilian is progress, says Marcia Clark, and proof of how far California has come since the '90s.

Yesterday's manslaughter charges against Michael Jackson doctor Conrad Murray spell the latest L.A. "trial of the century." Once again race and celebrity will dominate—and this time, the D.A. holds the advantage.

L.A. prosecutors tell The Daily Beast's Marcia Clark—who tried O.J. Simpson—that Roman's case should be a slam dunk. No wonder everyone's worried.

The idea that Roman Polanski was done in by an unscrupulous judge is a myth. Marcia Clark studies the startling transcripts from his 1977 guilty plea.

A retired L.A. prosecutor—the man at the center of the Polanski judicial misconduct allegations—now tells Marcia Clark that he lied to documentarians, undercutting the director’s defense.

New reports suggest that Michael Jackson's personal doctor may have administered the powerful anesthetic that killed the King of Pop. Former O.J. prosecutor Marcia Clark on the charges Dr. Murray Conrad could face—and whether it was murder.