From a New York Times obit by Daniel E. Slotnik headlined “Jack McNally, N.Y.P.D. Detective Turned Defense Sleuth, Dies at 89”:

Jack McNally, who as a police detective in 1964 made the first arrest in the most audacious jewel theft in New York City history, and who then became a private investigator for famous defense lawyers like F. Lee Bailey and worked on behalf of clients like O.J. Simpson, died.

As a detective, Mr. McNally had the boldness and street smarts of a Raymond Chandler protagonist, though his approach to witnesses and suspects was less confrontational than that of a typical hard-boiled gumshoe.