Twin Falls, Idaho ( KMVT-TV / KSVT / TV ) A Twin Falls County man found guilty of sexually molesting his 12 year old foster child was in court on Monday for his sentencing hearing.

Back in March of last year, Robert Thornley Williams was arrested for sexually molesting his 12 year old female foster child inside his Filer home. Williams was officially charged with one count of lewd conduct with a minor under sixteen. And two charges of sexual exploitation of a child, all three felony charges.

After both sides were able to make their final arguments, Judge Richard Bevan handed down a unified sentence of 20 year to life inside the Idaho State Penitentiary.