Carolyn McCormick returns to Law & Order in the role of Dr. Elizabeth Olivet, a former police psychologist now in private practice. When detective Green (Jesse L. Martin) coaxes a confession from the ten-year-old suspect in a school killing, the D.A.'s office calls in Dr. Olivet to examine the perpetrator. Is the boy indeed the killer -- and if so, is there the likelihood that he will kill again? ~ Hal Erickson, Rovi