Who is Tommy Molto from Presumed Innocent and what is their importance?

Tommy Molto, another deputy prosecutor, is Nico Della Guardia's righthand man. A former seminarian, he is nicknamed the Mad Monk around the office. He is short, overweight, pockmarked, and driven. He does not have the restraint to be effective in court, but is smarter and more disciplined than Nico, which makes him a good assistant. Tommy's pursuit of Rusty during the trial is singleminded to the point of desperation. Rusty suspects that Tommy is driven by an unrequited love for Carolyn, who treated him as a toady. In effect, Tommy's role in the novel is as the main thorn in Rusty's side.