(KNZA)--Closing arguments are set for Thursday morning in the Doniphan County jury trial for an Atchison man facing sixteen child sex-related charges.

Testimony in the trial for Heath Umphenhour began last Wednesday after a 12-person jury was seated following a two-day selection process.

Umphenhour is charged with multiple counts of aggravated indecent liberties with a child, sexual exploitation of a child, aggravated criminal sodomy and attempted breach of privacy of a child or children.

The charges stem from alleged sex offenses involving three girls under the age of 14 at the time that occurred between March 11th, 2011 and November 6th, 2013.

Umphenhour was arrested in July 2013 following an investigation by the Doniphan County Sheriff’s Department and Kansas Bureau of Investigation