Nassau County Supreme Court Justice George Peck, who during his stint as a prosecutor during a particularly violent era in the New York City metro area included a number of high-profile murder convictions, died on Wednesday. He was 75.

Born in New York City in 1942, Peck obtained his J.D. from St. John’s University School of Law in 1966; he earned an LL.M. from the New York University School of Law.