mother. she was the most amazing woman i had ever met in my life. and then, suddenly, one day, she was gone poisoned by carbon monoxide. he was like i couldn t get a pulse, i couldn t get a pulse. her husband blamed of faulty water heater, police blamed him. you don t think this is an accident? no. there was one problem, and it was a big one, no one could figure out exactly how he might have done it. he s an expert in gases, he s analyses urologist. murder or an accident. did you kill your wife? hello, and welcome to dateline, hundreds of americans die every year from accidental carbon monoxide poisoning, but according to police in ohio, one of those deaths wasn t an accident, it was murder, and they say if anyone would know how to use a deadly gas to murder someone, it was their prime suspects. here is kate snow with deadly exposure. reporter: he s come back to where it all began, to the town, the streets he knew so well, remembering the old times
life. and then, suddenly, one day, she was gone. poisoned by carbon monoxide. he s like, i couldn t get a pulse! i couldn t get a pulse! i couldn t get a pulse! her husband blamed of faulty water heater. police blamed him. you don t think this is an accident. no. there was just one problem. and it was a big one. no one could figure out exactly how he might have done it. he s an expert at gases. murder or accident? did you kill your wife? hello and welcome to dateline. hundreds of americans die every year from accidental carbon monoxide poisoning. according to police in ohio, one of those deaths wasn t an accident. it was murder. they say if anyone would know how to use a deadly gas to murder someone, it was their prime suspect. here is kate snow with deadly exposure. he has come back to where it all began, to the tune, the streets he knew so well, remembering the old times when life was simple, love was young and the future held so much promise. taki
and then kathy left with the boys. mark wangler admits things did go downhill after the boys left for college. he says kathy would get deeply depressed. but the boys being gone, she lost her purpose in life, i would say. we re working on it? were you trying yeah, we were in counseling. that, she was gone. kathy s family knew she had been sleeping upstairs while he was downstairs, but then they heard what mark had told investigators and a collective alarm went off. mark said he was sleeping with a towel under the bedroom door, a fan blowing and the bathroom window open. it was because the toilet and the master bath through head overflowed and mark said he wanted to keep the smell out of the rest of the house. kathy s family knew about the problem with the toilet, but they figured there was a different explanation for the towel, the fan and the open window. they believed mark knew there was carbon monoxide in the house because he had somehow
able to determine it was the carbon monoxide detector. i ran to check on kathy. kathleen wangler was 43 years old. for most of her life, had suffered from epilepsy. she was sleeping upstairs. i went in and shook her, called out to her, screamed at her. she wasn t responsive. i called 9-1-1. you tell them that she is having a seizure. yeah. is she breathing? no, i think she s not breathing. okay, sir, i need you to check for me. no, she s not breathing. okay, does she have a heartbeat? no, she doesn t. do you remember doing cpr? yes, i do remember doing cpr. i m starting cpr. okay. next door neighbor, diane, saw the rescue squad at the wangler s home. i went over and i said, mark, did kathy have a seizure? he s like, i couldn t get a pulse, i couldn t get a pulse,
he was sleeping upstairs. how did the toughest actor in hollywood handle the break-in? i don t know. much to my surprise, we learned that robert de niro never woke up and he slept through the break-in and the nypd the rest of the robber while she was rummaging through his christmas presents downstairs. she was fumbling around with de niro s ipad appear at his daughter was home at the time. this happened 2:30 in the morning. if robert de niro isn t safe, no one is safe. carley: new york city councilmen joe borelli will be here to talk about the policies that put his criminal career back on the streets. todd: disgraced harvey weinstein found guilty of and charged with sexually assaulting for women between 2004-2013 and convicted on three accounts all one accuser and faces 24 years