ACT OF MERCY? -- When Detectives Briscoe (Jerry Orbach) and Curtis (Benjamin Bratt) are called in to investigate the death of a 13-year-old quadriplegic boy, they are puzzled by the clues. After a suspect is found, McCoy (Sam Waterston) and Ross (Carey Lowell) find evidence that questions whether the murder was motivated by mercy -- or thrills. Steven Hill and S. Epatha Merkerson also star.

Season 8 | Episode 20

Jerry Orbach

as Detective Lennie Briscoe

Angie Harmon

as Assistant District Attorney Abbie Carmichael

Sam Waterston

as Executive Assistant District Attorney Jack McCoy

S.Epatha Merkerson

as Lt. Van Buren

Jesse L. Martin

as Detective "Eddie" Edward Green

Benjamin Bratt

as Detective Reynaldo "Rey" Curtis

Dianne Wiest

as District Attorney Nora Lewin

Steven Hill

as District Attorney Adam Schiff