sentences:  The long-term marriage became shaky and Ulner began to threaten Susan more frequently.Ulner instructed his sons and daughter to call their mother "white slut" (though she is in fact biracial) and on one occasion ordered his son to tape him beating her.He would later play the audio tapes to the family during dinner, occasionally pausing, pointing out Susan's flaws, mocking her while justifying his brutal behavior.