The "Black Widow" killer convicted of fatally poisoning her husband with antifreeze in upstate New York and suspected of slaying a previous husband in the same manner has died in prison.
Stacey Castor, 48, was serving 51 years to life at Bedford Hills Correctional Facility for Women in Westchester County when she passed away on Saturday morning.
She was convicted in 2009 of killing David Castor and trying to kill her daughter Ashley Wallace as part of a plot to frame her for her husband's slaying.
Additionally, she was accused of fatally poisoning her first husband in 2000.
"In my 34 years in the criminal justice system as a lawyer and a judge, I have seen serial killers, contract killers, killers of every variety and stripe," Onondaga County Judge Joseph Fahey said at the time of the conviction. "But, I have to say, Mrs. Castor, you are in a class all by yourself."
Stacey Cantor was convicted of fatally poisoning one husband, but authorities believe she did the same to another.
(DICK BLUME/THE POST STANDARD)
David Castor's death in 2005 in the Syracuse area was initially believed to be a suicide, but investigators later found he didn't knowingly drink ethylene glycol, a toxic chemical found in antifreeze.
Stacey Castor was charged two years later, just days after investigators in neighboring Cayuga County exhumed the body of Michael Wallace, her first husband and the father of her two children.
Michael Wallace's cause of death had originally been ruled a heart attack, but authorities later ruled he died after ingesting ethylene glycol.
Stacey Castor wasn't charged in Wallace's slaying, but prosecutors used the evidence to build their case. They said she killed her husbands to collect on their life insurance policies and estates.
Stacey Castor with her first husband, Michael Wallace, and their two daughters, Ashley and Bree Wallace.
She poisoned David Castor in September of 2007 by using a kitchen baster to slip him the antifreeze, prosecutors charged. She also set up the scene to make it look like he was depressed, had gotten drunk and killed himself by drinking the toxic liquid, according to authorities.
When she feared she might be caught, Stacey Castor decided to kill her daughter and frame her for killing both husbands. She knocked out Ashley Wallace with sleeping pills, then fed her vodka and pills, according to prosecutors.
Castor then wrote a suicide note on her computer that claimed to be from her daughter confessing to killing the two men, prosecutors said.
In the suicide note, the word antifreeze is written as "anti-free" in four places. An investigator had testified that Castor said "anti-free" during an interview. Castor acknowledged saying "anti-free" but said she had cut herself off mid-word because she meant to say something else.
Stacey Castor with her second husband, David Castor.
Investigators also found that the note was written while Castor was at home and her daughter was at school.
Castor appealed her case for years, claiming she was innocent.
With News Wire Services
'Black Widow' believed to have killed two husbands dies in prison - NY Daily News