Joe Scarnici/GettyLisa Marie Presley, the only child of Elvis Presley, spent her final days on a trying trek between Los Angeles and Graceland that may have pushed the 54-year-old to the brink.An alarming interview on the Golden Globes red carpet on Tuesday, and a speech in Nashville a few days prior, suggested that Presley was not only struggling physically but battling emotionally with increased isolation and grief. In an interview with Extra on the red carpet, Presley was seen struggling to s