didn't seem to care. he even looked at his watch, and there wasn't a watch, anderson, on his arm but he looked at it as if there was one. >> he's obviously been the prime suspect in natalee holloway's disappearance. arrested twice. wasn't enough evidence to charge him with the crime. what i find so stunning is the murder of this girl was on the fifth anniversary of the holloway disappearance. >> the defense is using that. the defense's saying there's postpartum depression here of a sense in relation to that he had been through so much with natalee holloway's situation. it was the five-year anniversary. he did nothing but he's been targeted from day one. post traumatic stress disorder. it was too much for him. he ended up taking out those aggressions on stephany flores. >> there was an undercover dutch journalist who recorded secretly van der sloot talking about holloway's death. he said -- van der sloot said he was on drugs and he didn't know what he said.