Does anybody believe the King really died from heart disease? That's what it says on his death certificate, but the state of Tennessee has joined the legions of doubters. This morning, a pathologist hired by the Tennessee department of health arrived in Memphis, ready to review Elvis Presley's medical records, autopsy report and other information. At issue: whether Shelby County medical examiner Jerry Francisco suppressed the role drugs played in Presley's death on Aug. 16, 1977. The verdict's due in two weeks.