Kelly Preston’s death certificate revealed she died at her family home in Florida, Us Weekly exclusively reports.The 57-year-old actress passed away on July 12, after a private two-year battle with breast cancer.According to the certificate, obtained by Us on Tuesday, August 18, the Hawaii native’s body was transferred from her and her husband John Travolta’s Clearwater, Florida, home to a nearby funeral home after she died at 11:46 a.m.