The final of the four individuals involved in the raping, torturing and holding of a Niangua woman against her will in May of 2013 has been charged. 20 year old Kristin Prince was sentenced today (Thursday) to 20 years in the Missouri Department of Corrections. Prince received the sentence for the charge of Assault in the 1st degree. She also received 15 years for Armed Criminal action. The other three individuals in the case have all received their sentencing. Judge Kenneth Thompson presided over the case.