. >> for one thing, the victim's wife, stacey castor, told the 911 operator things that were contra ticketing. >> friday night he got heavily intoxicated and slept through the day on saturday. >> yet the toxicology report showed no alcohol in his system. >> that caused us to raise our eyebrows again. >> there were two glasses found on david's nightstand. on the rims of both glasses was david's dna. david's fingerprints were on the glass with the small amount of alcohol residue, but only stacey's fingerprints were on the glass that held the antifreeze. >> if david had been drinking out of that glass and poured the antifreeze itself and committed suicide, why didn't it contain at least one fingerprint of his? >> the location of the antifreeze bottle on the side of the bed told the story. >> there's vomitus dripping on the bed and you can see there is vomitus under the antifreeze jug, but there's no vomitus on the antifreeze jug itself. >> proof, investigators say, that the antifreeze bottle was placed there after david consumed the antifreeze and got sick, and investigators found several things