Missing Montana Teacher Presumed Dead

Sherry Arnold disappeared after going for an early morning run Jan. 7.
1:47 | 01/14/12

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Transcript for Missing Montana Teacher Presumed Dead
A sad ending to the search for the missing Montana mother who went jogging last Saturday. And never came home authorities say that Sherri Arnold isn't dead and two men are being questioned in connection with her death ABC's Clinton -- Dell has more. This was not the update the people of Sidney Montana had hoped for. Friday morning the high school where Sherri Arnold was a popular math teacher announced she was dead. Investigators later said an anonymous tip led them to a 47 year old man he was taken into custody. He is currently being held on the Williams county jail. Additionally a second male individual age twenty you. And is being detained for questioning in Rapid City, South Dakota. The two men have not been charged. Sherri Arnold vanished a week ago while on a morning -- massive searches turned up only one of her running shoes her body has not been found. They won't say why but investigators told cherries family they do not think she is alive. All of FaceBook page set up to help find -- her family thanked the community for support during this deeply sad time. Arnold school where her kids also attend classes brought an extra counselors to help students and staff. Arnold's death comes at a time when an oil boom has ballooned the town's population -- out of state workers. Nobody is blaming oil workers in this case but the mayor says while many workers -- law abiding some bad apples are driving a spike in. Crime -- the day -- that night. So there has been in the streets the night is definitely Kate -- unfortunately -- was brought him in the early hours of the morning. The people who -- say things like this just don't happen here but now. It happens for Good Morning America Clayton send LA BC news Denver.

This transcript has been automatically generated and may not be 100% accurate.

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