A Delaware woman who fatally poisoned her husband with antifreeze in 2013, pleaded guilty to manslaughter, the Department of Justice confirmed.

USA Today reports that Jamie L. Baker, 47, of Smyrna, Delaware, entered the plea on Monday morning at the Superior Court in Dover. She was originally charged with murder prior to the plea deal.

On September 16, 2013, the victim, James D. Baker II, was found by police lying lifeless on the bedroom floor of the home he shared with Jamie Baker, off of Bryn Zion Road, near Smyrna. A medical examiner ruled the death a homicide after autopsy confirmed the victim’s kidneys contained ethylene glycol, an ingredient/chemical found in antifreeze. According to authorities, ethylene glycol is lethal when ingested.

Close to a year after his death, Jamie Baker admitted to detectives that she tampered with her husband’s steroid bottles by using a syringe to inject antifreeze into them. In March 2014, she was charged with first-degree murder and possession of a deadly weapon. Jamie was a professional weight lifter and ordered legal bottles of steroids.

The couple had been married for 21 years and had two daughters. James Baker worked as an environmentalist at DuPont Experimental Station for 22 years.

Although the motive remains unclear, Jamie apparently posted on Facebook in 2014, appearing to be a grieving widow.

Jamie Baker faces sentencing in March. She’s expected to get 15 years to life in prison.

[Feature Photo: Funeral.Net for James Baker]