Chester Bennington, who’d been struggling to stay sober in the months leading up to his suicide, had trace amounts of alcohol in his system when he died, his autopsy and toxicology reports have revealed.

TMZ reported that while an initial test had proved "presumptive positive" for ecstasy, further tests concluded that he hadn’t been under the influence of any other substance at his time of death.

The City of Los Angeles Department of Medical Examiner-Coroner report confirmed the Linkin Park frontman had died by hanging and that he had a “history of suicidal ideation.” It further noted that the room where he was found contained a bottle of generic Ambien with one pill broken in half, a half-empty glass of Corona beer and an empty Stella Artois bottle, plus a journal with a handwritten but undated biography. There was no suicide note.

TMZ said that Bennington’s wife, Talinda, told investigating authorities that the singer had come close to suicide before, including an incident in 2006 when he left his home carrying a gun after a heavy drinking session.

A month before his death, Bennington told his friend Ryan Shuck that he’d been sober for just six months. “He was describing an hour-by-hour battle with addiction,” Shuck told Rolling Stone. “When I look at it now, it’s horrifying.” Noting that some people were aware Bennington had been drinking when he died, he added, “We don’t know how much, but it doesn’t take much when you’re that advanced an alcoholic and an addict, and you’re battling to the extent he described to me.”

Meanwhile, Linkin Park have released a video for their track “Crawling,” taken from One More Light Live, which arrives on Dec. 15. The album is made up of material recorded during the band’s last tour with Bennington before his death at home on July 20 at the age of 41. You can watch the video below.

Chester Bennington Year-By-Year in Photographs: 2000-17