The brother of Elvis Presley has alleged that the King of Rock n' Roll's death was due to his doctor's actions. The Hound Dog singer died in 1977 at the age of 42, suffering a heart attack while reading on the toilet at his Graceland home.

Elvis Presley tragically passed away on August 16, 1977, at 42 years old. His cause of death was ruled to be cardiac arrhythmia potentially caused by an interaction between an antihistamine, codeine,

There have been several theories over the years as to the main cause of Elvis Presley's untimely death at just 42 on August 16, 1977.The King of Rock and Roll died of a heart attack while reading on the toilet of his ensuite bathroom at Graceland after months of weight gain and prescription drug addiction contributed to already present health problems.