S12, E21: DDA Jonah Dekker (guest star Terrence Howard from "Law & Order: Los Angeles") comes to NYC from Los Angeles to defend his cousin who has been accused of rape. Meanwhile, ADA Casey Novak (guest star Diane Neal) returns to help detectives Benson (Mariska Hargitay) and Stabler (Christopher Meloni) with the case. The detectives soon discover that the case goes much deeper than the current accusation and it raises the question: how far will someone go to get revenge for their family?