N.J. woman who beheaded son had pot, PCP in system

• Chevonne Thomas decapitated her 2-year-son and put his head in the freezer
• Thomas stabbed herself after ending a chilling six-minute phone call to 911
• She had lost custody of her son months before the incident due to drug use

CAMDEN, N.J. -- Toxicology reports have confirmed a mother smoked marijuana laced with PCP before decapitating her son and sticking the toddler's head in the freezer in August.

The Camden County prosecutor's office received the positive test for the dangerous combination often referred to as "wet" on Monday, confirming initial beliefs that Chevonne Thomas was high on the hallucinogen when she committed the horrific crime in her Camden home.

Thomas, who had a history of using the drug and mental illness, used a knife to decapitate 2-year-old Zahree. She then stuck the boy's head in the freezer in her home and called 911 and reported something had happened to her child.

Responding officers found the boy's torso on the first floor of the home before discovering his head in the freezer, authorities said.

Upstairs in her home, Thomas stabbed herself soon after ending a chilling six-minute phone call to dispatchers.

During the call, she matter-of-factly admitted stabbing her son before breaking into a repetition of monosyllabic words and short phrases.

The crime shocked the city and cast questions on the state Department of Children and Families' involvement with Thomas.

Thomas had earlier lost custody of the boy because of drug use and had regained care of the boy just months before his death.

In a statement released after the incident, a spokeswoman for DCF said Zahree had been placed with relatives while Thomas sought "court-ordered treatment for substance abuse and mental health disorders."

Kristine Brown, the DCF spokeswoman, said at the time that the agency staff made regular visits to Thomas and offered "extensive" services that included counseling, medication monitoring, substance abuse testing and treatment, and parental capacity evaluation.

Thomas lost custody of the boy following the 2010 arrest for endangering the welfare of a child.

At the time, Thomas told investigators she couldn't remember where the child was after blacking out in a nearby park after smoking marijuana laced with PCP.