A Mississippi mother and her boyfriend have been charged with capital murder in what police are calling the "suspicious" death of a 13-month-old child.

The incident happened at the Southern Inn and Suites on Hamilton Road in Southaven on Sept. 25, according to Maj. Wayne Perkins with the Southaven Police Department.

Detectives began investigating the child's death and called for toxicology reports on the deceased child. They received those reports Monday.

With this new evidence, 18-year-old Kentavia Chapman and her boyfriend, 37-year-old Pierre Jarrell, were both charged with capital murder Monday, authorities said.

Chapman and Jarrell were originally charged with felony child abuse in September.

Jarrell also was charged with two counts of felony possession of a controlled substance with intent to distribute.