Actor Hayden Panettiere's cause and manner of death have been determined, but the investigation into the circumstances surrounding her death may not yet be over.

Actor Hayden Panettiere's cause and manner of death have been determined, but the investigation into the circumstances surrounding her death may not yet be over. ↧ What's next in the Hayden Panettiere investigation after cause of d... The “Nashville” actress died of an accidental overdose at age 36.