we had the death of david castor, we had the attempted murder of ashley wallace, and we were allowed esent evidence about the death of michael wallace as well. >> so the trial begins, and the d.a. has taken the move, the bold move, to put the daughter, ashley, on the stand as the first witness. >> place your left hand on the bible, raise your right hand. >> she came home and she was like, let's get drunk. let's get just totally drunk. and she handed me a cup, and she had a cup. she told me to keep stirring the cup. i took a drink of it. >> and? >> and it tasted horrible. >> what did you say? >> and i was like, mom, this doesn't taste good. she said probably there's too much vodka in there. she took and it went back in the kitchen. she brought it back in, the cup was full. >> did you continue to drink it? >> yes. >> explain to the jury, if the cup tasted bad and you didn't enjoy it, why would you drink it? >> because i trusted her. >> what's the next thing you remember? >> waking up in the hospital with a detective asking me what i did. what did you drink? what did you do? what did you

well, that's a lie. >> the biggest bombshell today was a letter that he says ashley wallace wrote to aliant defense of stacey castor questioned ashley repeatedly about motive for murder. but ashley was ready for him and it all fell flat. >> he's having real trouble portraying her as someone who wanted to kill her father and then her stepfather and then herself. >> four weeks of the trial. >> over 50 witnesses in the case. >> clues at the crime scene worthy of sherlock holmes. >> the turkey baster that had david castor's dna on it. the suicide note, the autopsy results for david castor and michael wallace. >> interesting testimony with one remaining question -- will stacey castor testify in her own defense? >> if she did testify, was she going to break? was she going to admit it or was she going to keep up that steel exterior of a cold, calculating killer? ♪ celebrate valentine's day with hundreds of gifts under $199 and find other great deals on gifts she'll love at prices you'll love too with 25 to 50% off everything. only at kay. smile dad. i take medication for high blood pressure