Brian Hickerson performed CPR on girlfriend Hayden Panettiere, gave Narcan after finding her unconscious, his brother claims

Hayden Panettiere died at age 36 on August 16 following an apparent overdose and cardiac arrest. According to 911 dispatch and reports from Brian Hickerson's brother, Hickerson found the Heroes alum unconscious and performed CPR. He also administered Narcan before first responders arrived to treat her. Further details regarding the events leading to the death of the actress are currently coming to light as the situation is reviewed by authorities and family members.