Continuity mistake: Dr. Huang and Stabler are in the interrogation room with Joe when Joe starts telling him about the voices in his head. The boy is screaming for the voices to stop when Huang comes forward to comfort him. He takes his hand down from his ears, but in the next shot they're up near his head again. (00:18:25)
Character mistake: Capt. Cragen says that Columbine shooter Eric Harris shouts, "All jocks stand up" during the massacre, when, in fact, it was the other perpetrator, Dylan Klebold who stated this. (00:12:20)
Answer: His clients are guilty and won't take a plea. He's using desperate defenses in hopes of swaying a juror or two. Also makes for better television. "Temporary insanity" isn't nearly as compelling as "the video games made me do it."
Brian Katcher