Young Thug's Road Manager Responsible For Shooting Up Lil Wayne's Tour Bus

Lil Wayne's tour bus was allegedly shot up by a guy who has very close ties to Wayne's rival, Young Thug.

Atlanta PD got an arrest warrant for the suspect, Jimmy Carlton Winfrey, on May 21 ... and he's been charged with aggravated assault, terroristic threats, possession of a firearm by a felon, and criminal gang activity.

TMZ was told by multiple sources in Atlanta that Winfrey has been Young Thug's road manager -- which is incredibly relevant since Thug's been in a very public feud with Wayne for months.

Thug released a mixtape called "Tha Carter 6" -- mocking Wayne's long delayed album -- but changed it to "Barter 6" when he was threatened with a lawsuit.

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