04/10/2010 05:12 am ET Updated May 25, 2011

Hantavirus Holds Up 28-Year-Old Cold Case In Archuleta County

A pile of deer-mice feces is the latest stumbling block to solving a 1982 double-murder case in Archuleta County.

The possibility of evidence being infected with hantavirus, carried by deer mice, has led FBI agents to postpone testing blood found inside a decaying bus on a remote Southern Colorado ranch.

The bus may have been the murder scene of an unidentified man and a woman.

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