The person at the center of this case
Jessie Wallace Cook
Cold Case · Open
9 years waiting · since 2016
JESSIE WALLACE COOK
Justice for Jessie Wallace Cook — the trail went cold in 2016, but the truth hasn't.
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Key leads to think about
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suspect
Lead #1Who inflicted the blunt force injuries that caused Cook's death? Was this a single assailant or multiple individuals?
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witness
Lead #2Were there any witnesses near the water tower on Willow Street and Highway 212 on or around October 29, 2016?
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clue
Lead #3What was the motive for Cook's murder? Was it related to personal conflict, robbery, or another circumstance?
Jessie Wallace Cook, a 32-year-old enrolled member of the Cheyenne River Sioux Tribe, was found deceased near a water tower in Eagle Butte, South Dakota on October 29, 2016, with severe facial injuries caused by blunt force trauma. The identity of the person or persons responsible for his murder remains unknown, and investigators have not publicly identified any suspects or clear motive. The FBI is offering a $10,000 reward for information leading to an arrest and conviction, seeking community assistance to solve this homicide.
Case
#436
FBI Minneapolis Field Office and Cheyenne River Sioux Tribe Law Enforcement Services
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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evidence
Lead #4What physical evidence was recovered from the crime scene that could identify the perpetrator?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
Homicide Victim Eagle Butte, South Dakota On or about October 29, 2016 The FBI's Minneapolis Field Office in Minnesota, along with the Cheyenne River Sioux Tribe Law Enforcement Services in South Dakota, are seeking the public's assistance in identifying the unknown individual(s) responsible for the murder of Jessie Wallace Cook in Eagle Butte, South Dakota. On October 29, 2016, Cook, then 32 years old, was found on the ground, unresponsive, near the water tower on the corner of Willow Street and Highway 212 in Eagle Butte, South Dakota.
He was pronounced deceased at approximately 9:00 a.m. the same day.
Cook had severe facial damage, and the autopsy determined blunt force injury to be the cause of death. Remarks: Cook was an enrolled member at the Cheyenne River Sioux Tribe Indian Reservation.
Timeline of Events
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2016-10-29
09:00Body Discovery
Jessie Wallace Cook found unresponsive on the ground near water tower at corner of Willow Street and Highway 212 in Eagle Butte, South Dakota. Pronounced deceased at approximately 9:00 a.m.
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2016-10-29
Autopsy Findings
Severe facial damage noted. Autopsy determined blunt force injury as cause of death.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:October 29, 2016 at 9:00 AM
Last Updated:May 11, 2026
Up to $10,000 Reward
For information leading to the resolution of this case
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Case Information
Incident:October 29, 2016 at 9:00 AM
Last Updated:May 11, 2026
Up to $10,000 Reward
For information leading to the resolution of this case