Eugene Gold, a former tough-on-crime Brooklyn district attorney who in the late 1970s spearheaded the successful prosecution of David Berkowitz, the so-called Son of Sam serial killer, died on Aug. 5 at his home in Woodstock, NY. He was 100.

After a 13-year tenure, Mr. Gold stepped down as DA in 1981, having gained further prominence as a leading voice in an international campaign to win emigration rights for Jews in what was then the Soviet Union.