DON'T FLIP THE SWITCH! Ten Possibly Innocent Men Who Were Executed (PHOTOS)

Troy Davis, the 42-year-old death row inmate who was convicted of the 1989 murder of off duty police officer Mark MacPhail, is scheduled to be executed tomorrow by lethal injection.

Troy Davis Denied Stay Of Execution: Will Be Killed Tomorrow!Today, the Georgia board of pardons denied clemency to Davis and he will be executed on September 21, 2011 at 7 p.m.

The 411 On Death Row Inmate Troy Davis 

This high profile case has been one of the strongest arguments against using capital punishment, mainly because for the last 20 years, Davis’ case has been shrouded in doubt.

PHOTOS: Supporters Gather For Death Row Inmate Troy Davis

Davis has claimed his innocence from day one and this is where the problems lie when it comes to capital punishment. Since 1971 to 2010, there have been 17 cases in which DNA played a substantial factor in establishing innocence. So it stands to reason that it is possible Georgia maybe executing an innocent man tomorrow.

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Unfortunately, as we continue to execute death row inmates, we all too often find that later down the road it was a possibility that they were innocent.

Take a look at some unusual cases of men that were executed, but may have been innocent.