BROOKLYN - The Brooklyn district attorney has opened a criminal investigation into the city's actions in connection to the death of 4-year-old Marchella Pierce.

Prosecutors say Pierce was found dead in her Bed-Stuy apartment last month, severely underweight at only 18 pounds and with bruises on her body.

According to published reports, the investigation includes the Administration for Children's Services and outside social service providers that were responsible for the girl's well-being.

The Child Development Service Corporation (CDSC) says ACS did not make extra visits to the Pierce home as is standard procedure. ACS says it admits to making mistakes in the case, but places blame on the CDSC as well.

Pierce's mother, Carlotta Pierce, was arrested and charged with assault and reckless endangerment. An ACS caseworker and supervisor have also been suspended.

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