Chilling 911 dispatch audio is shedding new light on Hayden Panettiere’s final moments. The 36-year-old actress suffered cardiac arrest at a South Carolina apartment as paramedics launched a desperate fight to save her with advanced cardiac life support. CPR was underway as responders also reported a possible overdose. Panettiere was pronounced dead just minutes later. Here’s what the emergency audio reveals about the actress’s final moments and the investigation now underway.