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Press Release

Aneth Man Found Guilty of Murdering His Girlfriend in Indian Country

For Immediate Release
U.S. Attorney's Office, District of Utah

SALT LAKE CITY, Utah – A federal jury convicted a Utah man today for murder in the second degree while within Indian Country. The four-day trial took place before U.S. District Court Judge David Nuffer at the United States District Courthouse in Salt Lake City and was prosecuted by United States Attorney Trina A. Higgins of the District of Utah and Assistant U.S. Attorneys Tad May and Tanner Zumwalt. 

According to court documents and evidence presented at trial, Randy Lansing, 40, of Aneth, Utah, unlawfully, deliberately and intentionally killed his girlfriend, Tammy Clark, while within Indian Country on April 23, 2022. The evidence presented at trial established Lansing drove Ms. Clark, her two young daughters and a second woman to McElmo Creek on April 23, 2022. When they reached the creek, Lansing parked his blue SUV and started drinking beer with Ms. Clark. Upon arrival, Lansing violently beat Ms. Clark in front of her two young daughters and the second woman while at McElmo Creek. Ms. Clark sustained injuries that included, but was not limited to, extensive facial swelling, brain hemorrhaging, and bruising; lacerations to her right frontal cheek and left ear; oral lacerations to the lips and inner cheek; fractured hyoid (neck) bone; fractured posterior ribs; and extensive blunt force trauma to her torso and extremities.

Evidence at trial showed that Ms. Clark’s beaten body was taken by the defendant from McElmo Creek to Aneth in the back of his SUV. Neighbors, including an EMT, called San Juan County Dispatch for an ambulance and performed life saving measures until the ambulance arrived and transported Ms. Clark to Blue Mountain Hospital where she was later pronounced dead. 

“The strongest piece of evidence is Tammy Clark’s body. Tammy Clark’s body tells of the brutal beating she experienced during her last moments of life,” said U.S. Attorney, Trina A. Higgins during closing arguments.

The case was investigated jointly by the FBI Salt Lake City Field Office’s Monticello Resident Agency and Navajo Nation Police Department, Criminal Investigations.

Lansing’s sentencing is scheduled for May 17, 2024, before U.S. District Court Judge David Nuffer at the United States District Courthouse in downtown Salt Lake City. 



Felicia Martinez
Public Affairs Specialist
(801) 325-3237
USAO-UT | Facebook | Twitter

Updated February 15, 2024

Indian Country Law and Justice
Violent Crime
Press Release Number: 24-19