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An official complaint has been filed with Ontario’s Chief Coroner seeking an investigation into the medically assisted death of an 83-year-old Christian grandmother whose family alleges she lacked decision-making capacity and did not provide final consent.

Veteran and journalist Kelsi Sheren, who first broke the story on her Substack, revealed Sunday that the family of Brigitte Stegemann has formally requested a review by Ontario’s MAID Death Review Team.

🚨🚨BREAKING🚨🚨
An official complaint to the Ontario Chief Coroner’s office has been filed in the case of “GG” that I broke open. The family has given me permission to share this.

The physician who killed GG is Dr Kate Kester pic.twitter.com/zfy2n6vwHo

— Kelsi Sheren (@Kelsisheren) August 17, 2026

Stegemann died July 10, 2026, at The Pearl, a long-term care facility in Cannifton, Ont., according to the complaint shared by Sheren.

Stegemann was reportedly a devout Christian whose faith was central to her life, adding to her family’s concerns about the circumstances surrounding her medically assisted death.

The family alleges Stegemann showed “significant, documented evidence of cognitive disorientation” during the MAID clinician’s assessment and was unable to recall basic information about her own family.

The complaint also alleges care home staff initiated private MAID discussions and helped complete and witness application paperwork while Stegemann’s granddaughter, who held power of attorney for personal care, was away on a 10-day vacation.

Most seriously, the family alleges the elderly woman was “remotely silent” on the morning of her death and failed to provide the required final verbal express confirmation before the procedure.

The complaint identifies Dr. Kate Koester, although misspelled in the complaint, as the attending clinician and asks the Chief Coroner to investigate Koester’s compliance with MAID legislation, as well as the actions of staff at the facility.

Sheren said the family gave her permission to make the complaint public.

The allegations contained in the complaint have not been proven, and the filing itself does not establish wrongdoing. The family is asking Ontario’s Chief Coroner to determine whether statutory safeguards, procedural requirements and consent rules were followed.