Lisa Marie Presley is dead at 54.

LOS ANGELES The son of Lisa Marie Presley has died. He is the grandson of the late Elvis Presley. TMZ reports that Keough died from a self-inflicted gunshot wound Sunday in Calabasas, California. He was the love of her life.Presley had Keough and actress Riley Keough, 31, with her former husband Danny Keough. Nancy Sinatra tweeted her condolences to Presley, writing, I have known you since before your mama gave birth to you, never dreaming you would have pain like this in your life.