Jury trial for former Cooper County jail employee accused of manslaughter set for 2025

FULTON, Mo. (KMIZ)

A trial date has been scheduled for a former Cooper County Jail employee who was charged with first-degree involuntary manslaughter for the death of an inmate.

The jury trial for Robyn Pfeiffer, of Boonville, was scheduled for 9 a.m. Wednesday, June 11, 2025, at the Callaway County Courthouse, a Thursday court entry indicates. A pretrial conference is set for 10 a.m. Monday, June 9.

Pfeiffer and Rachel Atherton were both charged in February with first-degree involuntary manslaughter in the death of Brooke Bailey. Atherton had a hearing earlier this week, but her next court date has not been announced.

Both cases were moved from Cooper County to Callaway County on July 19 after a joint motion for a change of venue was filed.

Bailey was found dead on Oct. 27 in her cell with blood and vomit on the floor and on her clothing. Special prosecutors with the Jackson County Prosecutor's Office filed the charges.

Both Atherton and Pfeiffer are accused of failing to get Bailey medical help and telling others not to do so, according to the complaints filed against them.

Court documents say a medical examiner found Bailey died from diabetic ketoacidosis and low sodium levels. Bailey had told staff when she was booked that she had diabetes, along with other conditions. The probable cause statement says Bailey did not receive treatment when she complained of feeling ill and she became verbally nonresponsive to jailers.

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