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A woman accused of participating in a killing at a Pine Ridge youth center in October is set to plead guilty on Wednesday. Her plea documents unveil new details about the murder. 

As part of a deal with federal prosecutors, Tiffanee Garnier would plead guilty to being an accessory after the fact in the fatal shooting of 29-year-old Vincent Brewer III, according to court records. The offense carries a maximum penalty of 15 years in prison.

Garnier, 31, was initially charged with a much graver crime: first-degree murder, which carries a penalty of life in prison.

The Pine Ridge reservation’s Oglala Sioux tribal authorities earlier said Brewer, known as Vinny, was shot dead by several people. They said the incident happened in broad daylight in the parking lot of a youth center. Garnier and the victim were both from Pine Ridge.

Last week, in accordance with Garnier’s plea deal, she signed a statement of facts that provides previously unpublicized details on Brewer’s killing:

Around 3 p.m. on Oct. 16, two vehicles occupied by Garnier and at least six other people went to the SuAnne Big Crow Youth Development Center. Several occupants of the vehicle were looking for Brewer, who was in the parking lot of the youth center with several other people. 

“Multiple people exited the two vehicles holding firearms, and several of them were wearing masks,” the statement reads. “Brewer appeared to know several of the people and the reason the assailants were present. After a brief physical assault, several people shot Vinny Brewer multiples times.”

Brewer immediately died from his gunshot wounds.

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The attackers got back in their vehicles and left, with Garnier driving one of the vehicles. She accompanied the group back to Colorado, and "thereby assisted the offenders in preventing their apprehension."

The other attackers were not named in the statement, nor the reason for Brewer’s shooting. But at least one other person has been charged in the incident.

Myles Tuttle, 24, of South Dakota, faces counts of first-degree murder and accessory after the fact to first-degree murder. He has pleaded not guilty and is set to go on trial in January. Tuttle and Garnier, also known as Tiffanee Alford, are both detained at the Pennington County Jail.

Federal authorities have said that Brewer’s killing might be linked to another deadly Pine Ridge shooting September 2016, in which 34-year-old Anni Colhoff was killed. Three people face charges in that case.

Garnier's original charges of first-degree murder and misprision of a felony, or concealing Brewer's shooting from authorities, will be dismissed under her plea deal. 

Contact Tiffany Tan at

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Cops and Courts Reporter

Cops and courts reporter for the Rapid City Journal from February 2016 to July 2018. Contact her on Facebook or Twitter @tiffgtan.