SIBLING RIVALRY -- A baby boy's poisoning leads detectives to a baby food manufacturer, but the real culprit might be in the family. Poison is found in the nanny's room, leading to her arrest. During the trial, however, Kincaid and McCoy discover that the baby's older half-brother -- jealous of the attention paid to the new baby -- killed him. Patti Lupone (Life Goes On) guest stars.

Season 6 | Episode 22

Jerry Orbach

Detective Lennie Briscoe

Angie Harmon

Assistant District Attorney Abbie Carmichael

Sam Waterston

Executive Assistant District Attorney Jack McCoy

S.Epatha Merkerson

Lt. Van Buren

Jesse L. Martin

Detective "Eddie" Edward Green

Benjamin Bratt

Detective Reynaldo "Rey" Curtis

Dianne Wiest

District Attorney Nora Lewin

Steven Hill

District Attorney Adam Schiff