Riley Strain was kicked out of Luke Bryan‘s Luke’s 32 Bridge bar just minutes before his death on March 8. Now, we know why. An autopsy made public last month didn’t share this final detail, but a new, more thorough release of video and police notes reveals this and more. The medical examiner report states that Strain died from drowning and ethanol intoxication.All Nashville bars have been cleared of any wrongdoing.His family’s private investigator says he’s 100 percent certain that nobody tied to the investigation intended to accuse or spread misinformation.Information debunking a popular con…