sources of cyanide which can be in some cleaning fluids, it can be in some photographic solutions, to process film, metal cleaning. and then you can actually obtain cyanide, so you re looking for that. then you re looking for any kind of information that somebody in the home might have been researching, look at casy anthony, same situation, and then as the police did, they served a search warrant. they re looking for all these items that could be that could give her the means and i ll say another thing, megyn, that i m sure that the detectives at least now have offered the wife a polygraph so they can eliminate her and move away from that, but i have a feeling, since she has an attorney that she has declined that. megyn: i want to ask you two questions when we come back. number one, how fast does cyanide work? what would be the window we re investigating and ask you