Benjamin Keough's death ruled a suicide by gunshot wound
The 27-year-old was the grandson of the legendary Elvis Presley
{{#rendered}} {{/rendered}}Lisa Marie Presley's son Benjamin Keough's cause and manner of death has been revealed.
The Los Angeles County Medical Examiner's Office told Fox News on Tuesday that an autopsy completed on Monday ruled the 27-year-old's cause of death as an "intraoral shotgun wound." His manner of death is listed as "suicide."
Presley reacted to her son's death in a statement via her manager on Sunday.
{{#rendered}} {{/rendered}}LISA MARIE PRESLEY POSTS RARE PHOTO WITH ALL FOUR OF HER KIDS
Lisa Marie Presley (left) and Benjamin Keough. (Getty)
"She is completely heartbroken, inconsolable and beyond devastated but trying to stay strong for her 11-year-old twins and her oldest daughter Riley," said the statement. "She adored that boy. He was the love of her life."
Keough was the son of Presley, 52, and musician Danny Keough. That makes Benjamin the grandson of Elvis and Priscilla Presley and the brother of model and actress Riley Keough.
{{#rendered}} {{/rendered}}Compared to some of his family members, Keough lived a relatively spotlight-free life. He has one acting credit on IMDb, and TMZ reported that he had a $5 million record deal in 2009.
He was also known for his striking resemblance to Elvis, which, according to the outlet, Presley once addressed.
{{#rendered}} {{/rendered}}"Ben does look so much like Elvis. He was at the Opry and was the quiet storm behind the stage," she said. "Everybody turned around and looked when he was over there. Everybody was grabbing him for a photo because it is just uncanny."
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Reportedly, Presley's song "Storm and Grace" is about Keough, whose middle name is Storm.
{{#rendered}} {{/rendered}}If you or someone you know is having thoughts of suicide, please contact the National Suicide Prevention Lifeline at 1-800-273-TALK (8255).
Fox News' Nate Day contributed to this report.