Toxicology report reveals drugs used in Mechanicville family murder-suicide
A new toxicology analysis shows that diphenhydramine and kratom were found in the bodies of four children killed in a Mechanicville, New York, murder-suicide involving their mother and grandmother.
During a welfare check on June 23, authorities in Mechanicville, New York, found six deceased individuals: four children, their mother Sarah Myers, and grandmother Amy Steadman. The children—Harper Harmon (13), Hudson Harmon (11), and 10-year-old twins Gavin and Gracelynn Harmon—were killed on June 10, with toxicology reports confirming the presence of diphenhydramine, the active ingredient in Benadryl, and the plant-derived substance kratom in their bodies.
Investigators uncovered that Steadman had bought multiple over-the-counter sleep aids and searched the internet for insulin effects and lethal stabbing locations. Text messages between Steadman and Myers reveal a coordinated plan to administer the drugs before a 6 p.m. call with the children’s father, Brady Harmon. Police say three of the children died from poisoning, while Gavin was stabbed after attempting to defend himself. Handwritten letters found at the scene suggest the adults justified the killings as protection from alleged abuse, though the father denies any wrongdoing.
Why it matters
The case highlights the dangers of misusing common medications and illicit substances in domestic violence contexts.
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