S8, E12: When a forensic expert is the target of a botched assassination in a restaurant bathroom, Detectives Briscoe (Jerry Orbach) and Curtis (Benjamin Bratt) must piece together the motive of a seemingly unassociated suspect. Later, McCoy (Sam Waterston) and Ross (Carey Lowell) stumble upon evidence that questions the ethics of the good doctor. S. Epatha Merkerson and Steven Hill also star.