When that video a few years ago went viral of him trying to sing (not at Sturgis) but being just absolutely to fucked up to even know where he was, there was a lot of talk about he went off the deep end drinking when his kid died. He was diagnosed with Wernicke- Korsakoff syndrome (“wet brain”) from drinking ten years before Sturgis.

Wernicke’s encephalopathy has several potential symptoms. The most common issues are:

A confused mental state, ataxia, or loss of the ability to coordinate voluntary muscle movement, double vision or other changes in your normal vision

People with Korsakoff syndrome may also experience visual or auditory hallucinations. In addition, they may make up false stories without consciously meaning to deceive. Other symptoms are also possible. For example, you may undergo unusual changes in your normal behavior. You may also experience fatigue and an inability to concentrate. In addition, you may walk unsteadily or feel disoriented or delirious.