![NJ Woman Killed Husband’s Grandma with Antifreeze [VIDEO]](http://townsquare.media/site/398/files/2016/01/poison-thinkstock.jpg?w=980&q=75)
NJ Woman Killed Husband’s Grandma with Antifreeze [VIDEO]
A South Jersey woman has admitted to giving her husband's grandmother a deadly drink laced with antifreeze.
Gloucester County prosecutors tell 6abc.com that Anne Castagna, 46, of Brooklawn, admitted to causing the 2012 death of 88-year-old Mary Groatman by poisoning her during a visit to Groatman's rehab center. Groatman, was found in a coma hours later and died after being removed from life support. Castagna entered a guilty plea for aggravated manslaughter Monday, one day before jury selection in her murder trial.
Castagna now faces 25-years in state prison. Sentencing is scheduled for February 5.
Prosecutors have not shared Castagna's motive for the poisoning.
More From SoJO 104.9 FM
![Brooke and Jeffrey are So Bored They’re Drawing on Each Other’s Backs [VIDEO]](http://townsquare.media/site/398/files/2020/05/BNJ-DRAW-BACK.jpg?w=980&q=75)
![Adam Levine Goes Undercover as Meter Man, Pranks Drivers [VIDEO]](http://townsquare.media/site/398/files/2019/12/Adam-levine-meter-man.png?w=980&q=75)
![WATCH: Brooke Tries the Chair Challenge [VIDEO]](http://townsquare.media/site/398/files/2019/11/brooke-chair.png?w=980&q=75)