BOZEMAN, Mont. -

A Bozeman man has pleaded guilty to his role in helping an attempted rape suspect after he fled police custody.
    
Tristan Kane Anacker pleaded guilty Tuesday to felony obstruction of justice. In exchange, prosecutors agreed to dismiss an evidence tampering charge.
    
Anacker was one of five people charged with assisting 28-year-old Kevin Briggs, who was arrested early on Feb. 1 on suspicion of strangling and trying to rape his former girlfriend. Briggs walked out of an unlocked interview room at the police station and went to an apartment shared by Anacker and Andrew Kranker.
    
Anacker said he had seen alerts sent out by Montana State University about Briggs' escape, but that Briggs had told him they were lies.
    
Anacker said Briggs used his cellphone and spent about six hours at his apartment.