Big Bang

NO NUKES -- A mail bomb that killed the wife of a nuclear physicist leads detectives to question the stability of the marriage. Forensics experts help Briscoe and Logan name a suspect, but Stone and Kincaid (Jill Hennessy) uncover a motive that no one suspected. Vincent Pastore (The Sopranos) guest stars.

Season 4 | Episode 16

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