The death of actress Hayden Panettiere is under investigation, authorities have confirmed. Her former partner, Brian Hickerson, has had his attorney issue a statement following the news. The statement’s contents have not been released, but confirm Hickerson is aware of Panettiere’s passing. Details surrounding the circumstances of Panettiere’s death remain scarce as the investigation continues. Panettiere, known for roles in "Heroes" and "Scream," had publicly struggled with substance abuse and a tumultuous relationship with Hickerson, which included accusations of domestic violence. Law enforcement has not released any information regarding potential causes of death or if foul play is suspected at this time.