Autopsy Reveals Shocking Details As Elvis Presly's Grandson Shoots Himself In The Head

Lisa Marie Presley's son Benjamin Keough had cocaine and alcohol in his system when he shot himself dead, his newly-released autopsy report has revealed, and killed himself after arguing with his girlfriend. 

Keough, 27, shot himself in his family's mansion in July. At the time, sources revealed he'd been 'struggling' and that his death, while devastating, was not a 'huge surprise' to his mother or other relatives. 

Surveillance footage showed him having an argument with his girlfriend, Diana Pinto, in the backyard of their home. 

He then went inside, locked himself in a bathroom, placed a gun in his mouth and shot himself. Pinto heard the gunshot, went inside and had to use a bobby pin to gain access to the bathroom. She found him dead and called police.  

It's unclear how much alcohol or cocaine he had in his system but there were traces of both, according to the report which was released by the LA County Coroner's office released earlier this week. 

The report also describes Keough's history with mental illness. 

He had tried to take his life six months earlier, then spent three weeks in rehab four months before he died. 

Keough had attempted rehab three times before but never completed it. 

The autopsy makes reference to his drug abuse and says he also had a history of depression. 

The coroner's office made it public on October 12. It also refers to him having bouts of 'major depression' where he would spend days in the bedroom of his home. 

Keough was the son of Lisa Marie and Danny Keough, her first of four husbands. The pair were together from 1988 until 1994. 

Ben's death 'devastated' her and led to fears with her most recent ex-husband, Michael Lockwood, that it would trigger her to relapse.

Neighbors previously told DailyMail.com that they heard arguing on the morning of Keogh's suicide at around 3am. 

He killed himself at around 6am. 

Pinto was heard crying, telling police that she feared she would be blamed by his family for his death.  

Benjamin's grandmother Priscilla, 75, married Elvis in 1967 but they divorced six years later. They had only daughter Lisa Marie in 1968. Elvis died just nine years later. 

Benjamin was the son of musician Danny Keough, who married Lisa Marie in 1988 and divorced her in 1994. 

His mother, who has three other children, had previously spoken of her son's similarity to her dad Elvis, calling their resemblance 'uncanny'.