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Idaho Falls man, Rigby woman killed in ATV crash

Update: 8-26

Idaho State Police have reported that since the on-scene investigation ended, additional people came forward who were with the victims prior to the accident. ISP and the Fremont County Coroner’s Office now say it is undetermined whether Thueson or Galley were driving when the ATV crashed. That investigation is continuing.

Update: 8-4-19 12:45 P.M.

Idaho State Police have identified the victims of an ATV crash in Fremont County early Sunday. The driver was Brent Thueson,33, of Idaho Falls and the passenger was Triana Galley, 28, of Rigby.

Original Story:
Two people were killed when their off-road-vehicle crashed at around 12:50 a..m. Sunday on Fish Creek Road, about 7 miles south of Chick Creek Road in Island Park.

Idaho State Police said a 2016 Polaris ATV went off the road and struck a tree. The driver and passenger died at the scene. Neither was wearing a seat belt.

The names of the victims were not immediately released pending notification of relatives.

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