PIERRE, S.D. (AP) - A South Dakota woman has pleaded guilty to killing her boyfriend in a vehicle crash that authorities say happened when she fled from a police officer making a traffic stop.
Twenty-year-old Leigha Koster, of Fort Thompson, has pleaded guilty to involuntary manslaughter in federal court. U.S. Attorney Brendan Johnson says she faces up to eight years in prison when she is sentenced next Jan. 7.
Authorities say Koster was driving drunk on July 28 when the Crow Creek tribal officer stopped her, and that she sped away at more than 100 mph and lost control of the vehicle. Twenty-one-year-old Louis Herman died in the rollover crash near Fort Thompson. A 15-year-old female passenger survived.
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