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This undated photo provided by Mount Rainier National Park shows park Ranger Margaret Anderson. Anderson, 34, was fatally shot Sunday, Jan. 1, 2012, at Mount Rainier National Park in Washington state, according to the National Park Service. Officials closed the park after the shooting Sunday, and asked people to stay out of the area while they search for a man carrying a long rifle. (AP Photo/Mount Rainier National Park)

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.