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Peter Kritsch, the brother of slain park ranger Margaret Anderson, pictured on the poster at right, lights a candle in memory of his sister during an evening vigil for Anderson, Sunday, Jan. 8, 2012, in Eatonville, Wash. Anderson was killed by a gunman on Jan. 1, 2012, during a traffic stop where she worked at Mount Rainier National Park. (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.