3 Doors Down's former guitarist Matt Roberts dies at 38

This article originally appeared on PEOPLE.com.

Matt Roberts, the former guitarist for 3 Doors Down, has died, according to several reports. He was 38.

CNN reported that Robert’s father, Darrell Roberts, confirmed the news. The father and son traveled to West Bend, Wisconsin, where Matt was scheduled to participate in the “Rockin’ for Heroes” benefit event at a local restaurant, according to CNN.

The cause of death has not yet been confirmed, but police responded to a call Saturday that reported a man was “either asleep or passed out in the hallway of his hotel,” West Bend police wrote in a statement posted to their Facebook page, adding, “There were no signs of trauma on the body, and the cause of death is unknown at this time.”

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Darrell said police woke him up to inform him that his son had been found dead.

“I was wakened at 8:50 this morning by some detective beating on my door. It’s always scary as a parent, they were in suits and that’s when they told me. They asked me if Matt Roberts was your son, I said yes, and they said, ‘We have bad news to tell you, Matt deceased last night,’ ” Roberts said, according to CNN.

Roberts also discussed his son’s troubled past with anxiety and an addiction to prescription drugs, which he had been dealing with since his time with 3 Doors Down, according to CNN. But Roberts said he thought his son had “beaten it all.”

“I know he had prescription drug addiction,” he said. “He suffered greatly from anxiety. It’s crazy as a performer; he never liked crowds or liked places he didn’t know about as a baby, as a child, and this was his way of dealing with it and me and him talked about it often.”

Matt was one of the founding members of 3 Doors Down. He left the band in 2012 because of “health issues concerning blood circulation in his body,” according to TMZ.