You can find out a little more about him at the NYU Courant Bioiformatics Group site.
Some Common Lisp things he did include some code in the CLOCC, maintaining MK-DEFSYSTEM and ILISP, and, more recently CL UNIFICATION.
Marco Antoniotti
Marco Antoniotti is a researcher at NYU where he develops Bioinformatics applications using (among other things) Common Lisp. He is also a Person on CLiki.