Mom may return to jail in case of missing daughter

(CNN) - A bounty hunter said Thursday that he will revoke the bond of a Florida woman suspected in the disappearance of her toddler daughter - even as evidence emerged Thursday suggesting the possibility of a sad outcome for the girl.

Casey Anthony reported her three-year-year old daughter, Caylee, missing in July, a month after the last known sighting of her. Police jailed Anthony on charges of child neglect, making false official statements and obstructing a criminal investigation, but a bounty hunter paid the bond that let her out of jail until the charges against her are resolved.

On Thursday, a law enforcement source with knowledge of the case told CNN affiliate WKMG reporter Jessica D'Onofrio that DNA evidence had matched a strand of hair found in the trunk of a car linked to Casey Anthony with Caylee.

And investigators have found chemical evidence of human decomposition in the trunk, as well, a law enforcement source close to the investigation told CNN Wednesday.