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Photos provided by the Pierce County Sheriff's Dept. of Benjamin Colton Barnes, are taped to a map of the Mount Rainier area, at Mount Rainier National Park, Sunday, Jan. 1, 2012 in Washington State. A Mount Rainier National Park ranger was fatally shot following a New Year's Day traffic stop, and the 368-square-mile park in Washington state was closed as dozens of officers searched for the armed gunman over snowy and rugged terrain. Officials said Barnes is a person of interest in the fatal shooting. (AP Photo/Ted S. Warren)

Thousands attend service for Mt. Rainier ranger

Top federal officials, fellow park rangers and thousands of well-wishers have gathered in Washington state to celebrate the life of Margaret Anderson, a Mount Rainier National Park ranger who was fatally shot on New Year's Day.