Singaporean student accused of poisoning lab mates in US pleads not guilty

Former Stanford student Ouyang Xiangyu, 26, pleaded not guilty to four counts of poisoning her lab mates at the Palo Alto court on Friday. -- PHOTO: ASTAR WEBSITE.

SINGAPORE: Former Stanford student Ouyang Xiangyu, 26, pleaded not guilty to four counts of poisoning her lab mates at the Palo Alto court on Friday.

This is the Singaporean A*Star scholarship holder’s fifth court hearing since she was arrested on Nov 16 last year for poisoning the drinking water of two of her Stanford lab mates between September and November last year.