A Connecticut woman who died by suicide hours before she was set to be sentenced on the murder of her husband died by ingesting antifreeze, according to the chief medical examiner.

Linda Kosuda-Bigazzi was found at her home in Burlington last month.

Kosuda-Bigazzi, 76, was set to be sentenced for the murder of Dr. Pierluigi Bigazzi, 84, and for hiding his body for months while continuing to collect his paychecks.

Bigazzi was a professor of laboratory science and pathology at UConn Health.

Investigators believe he died sometime in July 2017 and that his UConn Health paychecks continued to be deposited into the couple’s joint account. State police found his body in their basement in February 2018.

Kosuda-Bigazzi had claimed that she killed her husband with a hammer in self-defense after an argument, according to police reports.

She had been scheduled under a plea deal to be sentenced last month at the Hartford Superior Court to 13 years in prison.