Agreed, Bob. This boy's privileged and judicial connection was questioned from the beginning in the way that this case was handled and let go, to the dismay of the American public.
Don, the videos showed that the boy was often mildly stoned on marijuana, carrying on normal conversations, able to recall details from previous conversations, answering and asking questions, following general rules and customs of social dialogue. He was even very cautious in clips of earlier conversations where he was simultaneously smoking marijuana (just like the video in question) but could not be influenced to speak about what happened to Natalie. Finally one day after months of infiltration, he admitted to what happened to poor Natalie and provided details of her death and burial at sea and the two boys he framed.
Don, I don't think that the boy's mental state was anything like what you are describing happened to you. He was simply mildly stoned and was able to carry on life normally and coherently. If he showed signs of not being lucid and not being in control of his actions, thoughts or speech, then it might seem plausible. I'm with Bob. This kid got away with murder.