The search for missing teacher Sherry Arnold came to a tragic end on Friday when her body was discovered.

Arnold, 43, of Sidney, Montana, had vanished around 4.30 a.m. on January 7 after going out for an early morning run. As RadarOnline.com previously reported, a detailed search carried out by the FBI and local police had so far uncovered just one clue to her disappearance, a single running shoe, despite extensive canine, air and horseback units covering the case.

Federal investigators announced on Friday that a suspect was in custody being questioned for the murder of the wife and mother.