Further details are available from the source about the death of actress Hayden Panettiere. She died after being found unresponsive. The circumstances surrounding her death are under investigation.

The Greenville County Coroner's Office provided some information about the events prior to her death. Cardiac arrest was a factor, according to this office.

The Drug Enforcement Administration is involved in the probe, according to sources. More information can be found through the source publication.