His courtroom work remained a minor sideline until 1983. Rockwell covered the robbery and murder trial of members of the Weather Underground and the Black Liberation Army who had robbed a Brinks armored truck in Nyack, New York. Like his famous uncle, Rockwell also did magazine illustrations. As well, he drew editorial cartoons and he taught at New York University, the Parsons School of Design, and the Fashion Institute of Technology, all in Manhattan, New York City.