A woman accused of killing her 2-year-old son at their Eastvale home is slated to be arraigned at the end of the month — more than two years after the child’s death.
Xiu Xiu Sun, 34, is charged with first-degree murder and assault on a child resulting in great bodily injury or death.
The toddler, Chris Cui, died in October 2022. Sun was arrested the same day following a Riverside County Sheriff’s Department investigation…