Singaporean A*Star scholarship recipient Ouyang , 26 , is accused of slipping paraformaldehyde to several fellow students . Ouyang has confessed to poisoning two classmates , as well as herself , in what she 's called a cry for help . She is charged with four felony poisonings -- which could carry 2 to 8 years -- and was expected to use an insanity defense . Ouyang won the prestigious scholarship in 2013 for her outstanding performance as an undergrad at Imperial College London .
Singaporean A*Star scholarship recipient Xiangyu Ouyang , 26 , is accused of slipping paraformaldehyde to several fellow students . Ouyang has confessed to poisoning two classmates , as well as herself , in what she 's called a cry for help . She is charged with four felony poisonings -- which could carry 2 to 8 years -- and was expected to use an insanity defense . Ouyang won the prestigious scholarship in 2013 for her outstanding performance as an undergrad at Imperial College London .