The sudden death of Hayden Panettiere has left Hollywood and her fans grieving, but the pain has been especially deep for those closest to her. Her former partner, retired boxing champion Wladimir Klitschko, finally spoke out after the actress was found unresponsive following a suspected overdose. In a deeply emotional Instagram message, Klitschko revealed that he and their 11-year-old daughter, Kaya, are facing "profound shock and grief," saying Hayden "left this world far too soon."