How could a mother commit the unthinkable? The chilling reality of a mother's actions in Byron, Wyoming, has left a community reeling after she shot her four daughters, then turned the gun on herself, a tragedy that unfolded on Monday, February 10, 2025.

The Big Horn County Sheriffs Office released a statement on Tuesday confirming the grim details of the event. The scene at the family home on East Shoshone Avenue in Byron, a small town nestled approximately 415 miles northwest of Cheyenne and about 90 miles south of Billings, Montana, was one of unimaginable horror. Tranyelle Harshman, 32, placed the call to 911 herself, reporting the gunshots she had just fired.

Full Name	Tranyelle Harshman
Age	32 years
Date of Incident	February 10, 2025
Location	Byron, Wyoming, USA
Details of Incident	Shot her four daughters, killing three, before taking her own life.
Mental Health History	Reportedly suffered from depression and other mental health struggles.
Substances Found	Toxicology reports indicated large amounts of ketamine in her system at the time of death.
Family	Husband, four daughters (Brailey Blackmer, Olivia, and two others)
Reference	SAMHSA National Helpline