NEW BRUNSWICK - Middlesex County Prosecutor Bruce J. Kaplan and Monroe Township Police Chief John J. Kraivec have announced that 40-year-old Tianle Li has been charged with the murder of her husband, Xiaoye Wang.

According to the prosecutor's office, an autopsy performed by the Middlesex County Medical Examiner's Office concluded that Wang died from thallium poisoning. The death was ruled a homicide.

The prosecutor's office also says that Li was employed by Bristol-Myers Squibb for 10 years and had obtained an undisclosed quantity of thallium, a highly-toxic metal, and administered a portion to her husband between Dec. 2010 and Jan. 2011.

The prosecutor says the couple was in the process of getting a divorce. According to neighbors, the cops came to the home frequently to break up loud fights.

Li's bail was set at $4 million, on top of the $150,000 bail set after she was charged for hindering her apprehension. She is expected to appear in court Wednesday.

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