Crime
Wyoming Tragedy: 3 children killed, 1 fighting for life after Byron shooting
Sources confirmed woman shot and killed her children – All under age of 10
Byron, WY – February 10, 2025 – The Big Horn County Sheriff’s Office (BHCSO) has confirmed a tragic shooting incident that took place at a residence on the 200 block of East Shoshone Avenue in Byron, Wyoming.
At approximately 1:30 p.m., the BHCSO Public Safety Communications Center received a 911 call from a female identified as Tranyelle Harshman, who reported that multiple gunshots had been fired inside her home.
Harshman informed dispatchers that her four daughters had been shot, and when asked about their condition, she stated that she believed they were deceased.
During the emergency call, Harshman provided the locations of the victims, stating that two of the children were in their cribs upstairs, while the other two were in their shared bedroom downstairs.
She also told dispatchers that she was in her upstairs bedroom and expressed an intent to harm herself.
Despite the dispatcher’s efforts to keep Harshman on the line and de-escalate the situation, she repeatedly stated that it was “too late” and ultimately disconnected the call.
Following the distressing call, BHCSO immediately dispatched multiple law enforcement units to the scene, including mutual aid resources from the Lovell Police Department and Wyoming Highway Patrol.
Emergency medical personnel from North Big Horn Hospital District and Powell Valley Healthcare were also mobilized and staged in the area in preparation for critical care interventions.
Law enforcement officers arrived on the scene within minutes and promptly entered the residence.
Upon conducting a tactical search, officers discovered a horrific scene:
- Two female children, aged 2 and 9 years old, were found deceased with gunshot wounds to the head.
- Two other female children, aged 2 and 7 years old, were still alive despite sustaining gunshot wounds to the head.
- A 32-year-old female, later identified as the caller, Tranyelle Harshman, was located in an upstairs bedroom with a self-inflicted gunshot wound to the head. Despite her injuries, she showed signs of life.
Responding officers provided immediate lifesaving first aid before ambulance personnel arrived to administer advanced life support:
- The 7-year-old girl, who remained alive at the scene, was urgently transported to North Big Horn Hospital before being airlifted via Cody Regional Health-First Flight of Wyoming to receive specialized critical care.
- The 32-year-old Harshman was also transported to North Big Horn Hospital, where she received advanced life support before being transferred to a higher-level care facility.
- Tragically, the 2-year-old girl who initially showed signs of life succumbed to her injuries shortly after emergency personnel arrived.
At the time of this release, the medical conditions of the surviving victims remain unknown.
The Big Horn County Sheriff’s Office, assisted by the Wyoming Division of Criminal Investigations, remained on the scene into the early morning hours of February 11, 2025, processing evidence and conducting an extensive investigation.
The Crime Scene Investigations Unit from Cheyenne, Wyoming, along with Special Agents from the Northwest Enforcement Team in Cody, Wyoming, were deployed to aid in forensic processing.
Authorities have confirmed that this was an isolated incident contained within the residence, and there is no ongoing threat to the public.
The Big Horn County Sheriff’s Office extended its gratitude to the various law enforcement and emergency medical teams that responded to this tragic event, including:
- Lovell Police Department
- Lovell Police Department Dispatch Center
- Wyoming Highway Patrol
- Wyoming Division of Criminal Investigations – Northwest Enforcement Team
- Wyoming Division of Criminal Investigations – Crime Scene Unit
- North Big Horn Hospital Ambulance & Emergency Room
- Powell Valley Healthcare Ambulance
- Cody Regional Health-First Flight of Wyoming
Request for Public Support
Authorities are urging the public to respect the privacy of the victims’ families during this incredibly difficult time.
Anyone with relevant information related to this case is encouraged to contact the Big Horn County Sheriff’s Office.
CHEROKEE COUNTY, Kan. — A 23-year-old man from Riverton has died following a shooting at a rural property in Cherokee County, Kansas, and his 19-year-old brother has been booked into jail on a second-degree murder allegation, according to information released by authorities.
The victim was identified as Gannon Reece, 23, of Riverton, Kansas. The suspect was identified as Joshua Wilson, 19, also of Riverton, who is the victim’s brother.
According to the Cherokee County Sheriff’s Office, Wilson was booked into the Cherokee County Jail on suspicion of second-degree murder. Formal charges are expected to be submitted to the Cherokee County Attorney’s Office.
Authorities said the Cherokee County Emergency Communication Center received a 911 call on October 23, 2026, reporting that a person had been shot at 4971 SE 67th, in a rural area of Cherokee County.
Deputies were dispatched to the location to investigate the reported shooting.
When deputies arrived, they found a man suffering from gunshot wounds. Cherokee County Emergency Medical Services personnel examined the victim and determined that he had died.
The suspect, who authorities later identified as Joshua Wilson, was still at the scene when deputies arrived. Officers immediately detained him as the investigation began.
Authorities subsequently identified the deceased man as Gannon Reece and confirmed that Wilson was his younger brother.
Wilson was booked into the Cherokee County Jail in connection with Reece’s death on suspicion of second-degree murder.
According to the information provided by authorities, formal charges will be submitted to the Cherokee County Attorney’s Office. The available information does not specify whether prosecutors have formally filed the charges in court or whether Wilson has appeared before a judge.
The investigation remains ongoing as authorities work to establish the circumstances that led to the shooting.
No details have been released about what preceded the incident, whether an argument occurred, or what may have motivated the shooting. Authorities have not provided information about a possible firearm recovery or any other evidence beyond the initial circumstances described in the report.
The Cherokee County Sheriff’s Office is leading the investigation with assistance from the Kansas Bureau of Investigation and the Cherokee County Attorney’s Office.
Investigators are working to determine the full circumstances surrounding Reece’s death and gather evidence relevant to the case.
Authorities have stated that there is no ongoing threat to the public.
Officials also announced a temporary road closure affecting SE Lostine between Highway 69A and SE 60th.
Motorists were advised to use alternate routes until further notice while the closure remained in effect. The information provided did not specify when the roadway would reopen.
Drivers traveling through the area were encouraged to follow local traffic instructions and allow additional time for their journeys.
The fatal shooting has resulted in the death of a young Riverton resident and the arrest of his 19-year-old brother.
While authorities have identified both men and disclosed the booking allegation, several details remain unknown, including the events leading up to the shooting and the formal status of the prosecution.
The Cherokee County Sheriff’s Office, Kansas Bureau of Investigation, and Cherokee County Attorney’s Office are continuing to investigate.
Joshua Wilson is presumed innocent unless and until proven guilty in court.