Lyle and Erik display different behaviours after their loss. Lyle remains stoic, while Erik is grief-stricken. Evidence suggests that Lyle and Erik may be responsible for the killings.

Detectives Zoller and Linehan interview the brothers' friends and acquaintances. Erik reveals something shocking to his psychologist. Abramson becomes more knowledgeable about the Menendez family dynamics and tries to represent the brother better.

When Lyle and Erik are taken into custody under suspicion of murder, defence attorney Abramson tries to figure why they would commit such a crime. The prosecution attempts to get tapes of Lyle and Erik's psychology sessions.

Leslie tries to have Dr Oziel's tapes disregarded by the court; Erik and Lyle detail the abuse that they experienced from their parents; Pam Ferrero is pressured by the DA's office.

Judge Weisberg makes a controversial decision allowing the case to be broadcast on television. The ethics of a star witness are questioned. Leslie struggles to face inner demons.

The jury hears from the Menendez brothers for the first time as they take the stand, while Leslie finds a renewed purpose.