A woman whose year-old daughter died of a drug overdose was charged with murder after police found traces of cocaine in the baby's bottle, police said Monday. Daniela Toledo do Prado, 21, brought her daughter Vitoria to the hospital on Saturday night, complaining that the child was suffering from convulsions caused by drinking spoiled milk. The child vomited repeatedly and died of heart failure early Sunday, police investigator Paulo Roberto Rodrigues said. Doctors found a suspicious white powder on the girl's tongue. The mother claimed the powder was milk but it tested positive for cocaine, Rodrigues said. Police searched the...