FBI Investigating Murder After Wind River Reservation Man Found With Throat Cut

The FBI’s Denver office confirmed to Cowboy State Daily on Wednesday that it’s investigating the death of Gustave Yellowhair, 37, who was found on the Wind River Reservation on March 20 with a sliced carotid artery, jugular vein and larynx.

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Clair McFarland

April 19, 20232 min read

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The FBI confirms that it’s aware that a man died by homicide on the Wind River Indian Reservation last month and that the agency is still investigating the incident.  

Gustave Yellowhair, 37, died of a sliced carotid artery, jugular vein and larynx on about March 18, Cowboy State Daily reported Monday. His body was found March 20.

The FBI in a Wednesday email said its Denver office is aware of the homicide victim found last month on the Wind River Indian Reservation.  

“The case remains open and under investigation by the FBI with assistance from the Bureau of Indian Affairs (BIA) the Wyoming Division of Criminal Investigation and the Riverton Police Department,” says the agency’s email. “Additional information is not available at this time.”

There was no toxicology in Yellowhair's body relevant to the case, according a docket the Fremont County Coroner sent to Cowboy State Daily on Monday. 

Yellowhair was born in Cheyenne, his obituary says. An Ethete couple adopted him and raised him there. He attended Wyoming Indian schools and Lander Valley High School.

Yellowhair leaves behind two children and a significant other, his obituary says.

Ethete is a town on the Wind River Indian Reservation in Wyoming.

The U.S. Attorney’s Office also said Monday it has not filed charges relating to the murder.  

Felony-level crimes on the Wind River Indian Reservation generally fall under federal, not state jurisdiction.  

Gustave yellowhair
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Clair McFarland

Crime and Courts Reporter