The New York Times reports that in the late-Senator Ted Kennedy’s new 532-page memoir to be published Sept 14, Kennedy reveals that “he had written a letter to the Los Angeles district attorney asking that he not seek the death penalty for Robert Kennedy’s assassin, Sirhan Sirhan. (The judge, Herbert V. Walker, disregarded the letter, Mr. Kennedy said, though Mr. Sirhan’s life would be spared by the California Supreme Court.)”
According to Wikipedia, “on February 10, 1969, a motion by Sirhan’s lawyers to enter a plea of guilty to first degree murder in exchange for life imprisonment (rather than the death penalty) was made in chambers and denied. The court judge, Herbert V. Walker, ordered that the record pertaining to the motion be sealed”.