A Tulsa man who shot and killed another man during a road rage incident in 2007 says he wants people to slow down and get all the facts before they call for vengeance in the Trayvon Martin case.

Kenneth Ray Gumm says his life was threatened and he truly feared he would be killed when he shot and killed Sand Springs resident Dale Turney in June, 2007.

The men confronted one another after a road rage incident on Riverside Drive.

Gumm eventually pleaded guilty to manslaughter, something he now deeply regrets.

He told KRMG in an exclusive interview that the National Rifle Association paid for his defense attorneys, who in Gumm's words were "incompetent."

He hopes something similar doesn't happen to George Zimmerman, the neighborhood watch captain who shot and killed 17-year-old Trayvon Martin last month in Florida.

"They need to just wait and let the case play out to find out whether it was self-defense or whether it wasn't," he said.

He deplored the actions of the New Black Panther Party, which reportedly issued a "bounty" for Zimmerman.

"That should be against federal law right there," he said.

Gumm hopes one day to have his conviction exonerated.