(From the AP) Parents have been warned to keep an eye on their children and take extra safety precautions after a 17-year-old Southern California girl was apparently abducted about a block from her school and killed. An autopsy confirmed the identity of Norma Lopez Wednesday, six days after she disappeared and a day after her decomposed body, shirtless and clad in jeans, was found face-down in a grove of trees in the agricultural area on the eastern edge of Moreno Valley.

Investigators would not release the cause of death.

Police and the FBI have not identified a suspect and asked the public for help in the investigation. Police would like to speak with the driver of a green SUV seen speeding from the area the day Lopez vanished.

Read more: Calif. girl, 17, slain; parents told to watch kids