U.N. court in Cambodia upheld earlier diagnosis that Ieng now has dementia . Court : After seeking further medical assessment , the court issued a statement Thursday confirming the earlier diagnosis that Ieng Thirith suffers from a `` progressive , degenerative illness ( likely Alzheimer 's disease ) and remains unfit to stand trial . '' Experts say accused 's cognitive impairment is ' likely irreversible ' Three others , include Ieng Kim 's husband , face charges of crimes against humanity . Khmer Rouge regime 's four - year rule in the 1970s is blamed for 1 million deaths .
U.N. court in Cambodia upheld earlier diagnosis that Ieng now has dementia . Court : Experts say accused 's cognitive impairment is ' likely irreversible ' Three others , include Ieng Kim 's husband , face charges of crimes against humanity . Khmer Rouge regime 's four - year rule in the 1970s is blamed for 1 million deaths .