The Drug Enforcement Administration has joined the investigation into Hayden Panettiere's sudden death, according to media reports. The federal agency's involvement comes as local police and the Greenville County Coroner's Office continue parallel investigations and toxicology results are still pending.
Panettiere, 36, was found unresponsive and in cardiac arrest at a residence in Greenville, South Carolina, on August 16. Emergency crews attempted advanced life-saving measures, but she was pronounced dead at the scene.
