UPDATE: 9/13, 2:20 p.m. ET - Alf child star Benji Gregory's cause of death has been revealed. The local medical examiner confirmed to TMZ on Friday, September 13, that Gregory died from heat exposure in the setting of hepatic cirrhosis (scarring of the liver). The actor was found dead in his car. Original story: Former child star Benji Gregory has died at age 46. The Maricopa County Medical Examiner's office confirmed on Wednesday, July 10, that Gregory died on June 13, in Arizona, according to Deadline. His cause of death has not yet been determined. TMZ was first to break...