attorney hentemann asked for a bench trial, no jury.. if she killed ray or if he committed suicide. in her opening statement, prosecutor emily pelphrey attacked the idea that ray killed himself. >> he was planning for his future. he loved his grandchildren. >> the doctor who treated ray in the hospital where he died testified teresa herself said ray was not suicidal. >> and she had indicated that she had not mentioned anything about feeling suicidal at that time. >> no, the state argued, this was murder. medical examiner dr. eric vey testified that antifreeze killed ray. >> he died as a result of complications of ethylene glycol toxicity. >> but exactly how antifreeze kills was critical to the state's case. >> when somebody ingests antifreeze either deliberately or because somebody else gave it to them, what's the progression of symptoms? >> well, initially they'll appear to be drunk or stuperouss and then they will become progressively lethargic and then become com owe toes and then start to have congestive heart failure and then go in