New York Chiropractor Poisoned: Surprising Court Verdict Reveals Shocking Twist
When Mary Yoder, a seemingly healthy chiropractor from Buffalo, New York, tragically passed away in 2015 at the age of 60, her grieving family was left searching for answers. The case took a dark turn when it was discovered that Mary had been poisoned, leading to an unexpected suspect emerging. Now, nearly a decade later, Dateline is revisiting the case following a surprising courtroom development that has cast doubt on everything known about the case. The upcoming episode titled “Poison Twist” will premiere on Friday, March 21 at 9/8c p.m. on NBC.
The official synopsis of the episode reveals, “The mysterious death of a beloved chiropractor becomes a criminal investigation after authorities uncover evidence of poisoning. Years after the incident, a court makes a significant decision regarding the central figure in the case.”
Mary’s sudden decline in health in July 2015 left doctors baffled, and despite their efforts, she tragically passed away on July 22, 2015. The revelation that Mary had been intentionally poisoned left her family reeling, as they struggled to comprehend why someone would harm her.
As the investigation progressed, detectives focused on an unlikely suspect – Kaitlyn Conley, a former employee at Mary’s practice who had also dated her son. Kaitlyn faced two trials for second-degree murder in connection to Mary’s death, with the first trial resulting in a hung jury. In a stunning turn of events, Kaitlyn’s manslaughter conviction in 2017 was overturned in January 2025 by a state appellate court.
Despite the legal proceedings, Mary’s family continues to seek answers and question the validity of the initial verdict. Some family members have raised concerns that Kaitlyn may have been framed, while others feel that the evidence has not been thoroughly examined.
Dateline recently spoke with Kaitlyn Conley for an update on the case’s latest developments.
The two-hour broadcast also featured an interview with Kaitlyn’s attorney, Melissa Swartz, discussing the latest developments in the case. In a recent interview with Dateline, Kaitlyn expressed her frustration at feeling judged despite her innocence. She emphasized that there is much more to the situation than meets the eye. As the mystery surrounding Mary’s death lingers, her family remains determined to uncover the truth and find closure. For those interested in learning more about the case’s twists and turns, tune in to Dateline on Friday, March 21 at 9/8c p.m. on NBC or stream the episode on Peacock the following day. Stay updated on Dateline by subscribing to the official newsletter and exploring the podcast.
