meningeal artery in the patron. casey would know nothing about the meningeal artery, a unique kind of condition, but the nurse might. a nurse might, how would-- >> yeah, because they have patients who come in with ruptures of the meningeal arteries, a purely medical term that casey wouldn't know. >> i don't think the jury is going to care. >> and chloroform and chlorophyll. they've never proven chloroform as a cause of death. >> we've never had a baby killed or murdered using chloroform. >> there's always a first. >> of course there's always a first. it's never proven before and why would you do it when it takes hours to make it and the smell and easily found in autopsy. >> and chloroform decompetition. >> the suggestion-- >> one of the 5,000 questions that are sort of unanswered in this case. when we come back, the one question we were wondering a week ago today, why was the trial halted so mysteriously? well, we're going to show you why and what happened. it surprised, i think, everybody. >> hello i'm here at camp