a parent. As in the Izquierdo case, investigation into Nadine's death revealed that many potential opportunities to intervene had been missed. The family had been known to city agencies since 1989, when neglect proceedings were initiated because one of Carla Lockwood's other children tested positive for cocaine at birth. The matter was dropped when Lockwood entered a drug treatment program. Nadine herself had tested positive for cocaine at birth, but again, a case against Lockwood was dismissed within six months. Neighbors allegedly called the Child Welfare Administration several times in regards to the abuse Nadine suffered at her mother's hands, but little was done to investigate. The mishandling of Nadine's case was one of the factors that prompted a major overhaul of New York City's child protective services and protocols for investigating abuse allegations. See also Murder of Nixzmary Brown Murder of Elisa Izquierdo Murder of Justina Morales Murder of Joseph Wallace References External links , Special Commissioner of Investigation for NYC School District, February 1997 1991 births 1996 deaths 1996 murders in the United States Child abuse resulting in death Murdered African-American people Filicides in New York (state) Incidents of violence against girls Washington Heights, Manhattan