On December 27, 2004, 37-year-old Michelle Asher was last seen walking along Route 33 out of Russellville, Illinois, heading toward Vincennes, Indiana. Two weeks passed before she was reported missing. By then, police and volunteers searched the countryside, but no clues turned up.

Five months later, fishermen on the Wabash River made a discovery: Michelle’s body tangled along the riverbank.

The official story said no foul play was found. But Michelle’s sister never believed it.