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MEDFORD, Ore. -- A man accused sabotaging national forest trails near Ashland to hurt mountain bike riders is due in court Wednesday in Medford for a hearing on a plea bargain.

The Jackson County District Attorney's Office expects Jackson Dempsey to change his not guilty pleas to charges of assault and reckless endangerment. He could learn his possible sentence at the hearing.

Authorities say Dempsey strung nylon cords across trails and threw nails and small trees in the path that hikers share with bikers.

Dempsey was a psychiatrist for Jackson County when he was arrested last July. He has since resigned.

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