Hang it up, cowboy.
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It's just beyond sad how fame can destroy some people.
He had these problems long before he was famous. Drink and drugs starting at age 12. Numerous DWIs, convictions for stealing cars and break-ins. In his case, it appears success and fame actually helped him clean up for a while. He was divorced back in 2010 from his mentor and long-time manager, who is much older than he is, and his career has largely stalled. Those kinds of things can lead a person back to old habits, unfortunately.