Timothy Cunningham: Puzzling death of CDC scientist ruled suicide by drowning

The death of Timothy Cunningham, the Centers for Disease Control and Prevention epidemiologist whose body was found in a river weeks after his disappearance, was ruled a suicide by drowning. The Fulton County Medical Examiner’s Office said Tuesday that Cunningham, 35, had marijuana in his body but it didn’t contribute to his death. The medical examiner’s office …