she was marguerita montanez. >> margearita was the daytime 90.or the kids after rosie died. he also hired another woman to be the nighttime nanny, at the time the detective thought nothing of margarita, the nanny. though, that would eventually change. for now, he was only there to get the pills formulas. >> before he retreats the pills, he asked me, have you found the cause of death for my wife? and i said, no, we have. and so, he reached up into the cabinet, he got the pills. but before he handed them to me he said, why do you want these? and my response was you know, i just want to cover all the bases. >> the next day, yaz asked rosy sister to watch his kids overnight. then, in the middle of that night, she got an urgent call from him. >> at four in the morning, he left me a voice mail saying, that his friend's brother was in a bad car accident. and, they didn't think he was going to make. so, he was going to go to north carolina. >> the friend's brother was apparently in bad shape. rosie asked the dipuccio family to watch the children for the