Henderson County, NC – A horrifying tragedy has stunned the community after Gudrun Casper-Leinenkugel, 52, was arrested on January 16 and charged with first-degree murder and attempted murder following the poisoning of her daughter during a family Thanksgiving dinner in November 2025. The horrifying incident unfolded at a gathering of 12 people, where Casper-Leinenkugel allegedly laced her daughter’s wine with acetonitrile, a highly toxic industrial chemical.

Authorities report that three people who consumed the tainted wine fell seriously ill, and tragically, one daughter died on December 1, 2025. Investigators were alarmed to discover that Casper-Leinenkugel’s search history included disturbing queries such as, “What happens if I accidentally ingest acetonitrile?” This has raised questions about her planning and intent, and authorities are now probing whether she may be linked to other suspicious deaths.

Casper-Leinenkugel has been denied bond and faces the possibility of the death penalty, with a probable cause hearing scheduled for February. The case has left relatives, friends, and neighbors in disbelief, struggling to reconcile the image of a mother with the shocking allegations of premeditated poisoning.

The chilling nature of the crime—transforming what should have been a joyful family gathering into a deadly scene—has captured national attention. Law enforcement continues to investigate, piecing together evidence from the toxicology reports, online searches, and the chain of events leading to the fatal poisoning.

As the investigation unfolds, the Henderson County community and the nation grapple with the terrifying reality that someone trusted within a family could commit such a calculated act. Questions remain about Casper-Leinenkugel’s motives and whether more victims may be linked to her.

This tragic story serves as a grim reminder of how quickly trust can be shattered and safety compromised, leaving loved ones mourning and searching for answers. The coming months may reveal even more chilling details about this deadly Thanksgiving.