Ste. Genevieve County
Senator Roy Blunt says 52-year-old Lynn Messer disappeared on July 8.
Lynn Marie Messer, 52, was last seen around 4 a.m. Tuesday in the Festus area.
Troopers say Chad Unterreiner did not notice ATV in front of him had stopped.
The American Civil Liberties Union says Ste. Genevieve County and former inmate Stanley Schell have settled a lawsuit filed in January.