nightmare. she screamed and she yelled an she cried, it was terrible did she fell down the steps? no one was thinking someone di this to her, but did someone d this to her. it just unraveled from tha moment on. the fashionista with re lipstick she meant the world to me. when she walked into the roo it was like a movie star walke in corporate executive, caring mom, 1 million dollar smile an a 4 million dollar estate. oh my god, i need a ambulance. murdered. i went screaming out of the house. this was a prominent woman, murdered in her home, late a night. almost certainly someone sh knew correct where would it lead a twisted case of betrayal and greed. the fingers being pointed a me her own daughter of suspect from the start you pulled the knife out an you tell the police oh you are going to find my fingerprint on the knife her son in law who seemed s devoted. they interrogated us fo eight hours. or maybe someone else with million dollar motive.
door,. and when in there you go police had warrants for all the family members phones. a few weeks later, they ha boxes of records to come through. detectives analyzed suzanne first. what could you tell about suzanne from her cell phon records. a lot investigator robin area from the westchester count d.a. s office specializes in phone data analysis. i figure out a pattern of suzanne s life just based on her records. and on the day of peggy s murder,. that day was like that they would like every other day and suzanne s life there wasn t a change for that particular day and you d expect to see a change if someone is in th process of committing murder for the first time correct suggesting, she s innocent? either that she s innocen or she has another phone but there certainly wasn t communication indicating tha something was going to happen.
i m glad everything s okay. we ll disregard for you. have a good night. reporter: it was probably the last time peggy s voice was heard by anyone except her killer. police were convinced still are convinced peggy was letting in someone that she knew. susanne? maybe. but why would she use a tracfone to get her mom to open the door in the middle of the night? she wouldn t have to let me in. i have a key. and i know the how to work the alarm. reporter: right. so if you wanted to kill her, you could have waited until she went to sleep and went in. reporter: unlocked the door and went in. reporter: disarm the alarm. there you go. there you go. reporter: police had warrants for all the family members phones. and a few weeks later they had boxes of records to comb through. detectives analyzed susanne s first. what could you tell about susanne from her cell phone records? a lot. reporter: investigator robyn arias from the westchester county d.a. s office spe